Found on another website. Don't know if anyone have posted here already about this. I found it because i myself have a problem here. I guess I better prepare for worst. 
1) Be cool.

If you are the breakee (and most people on this site are) and you realize you are being cut loose...let the white heat and noise in your body and soul stay inside. The breakee is likely anticipating the worst and unless you have caught them cheating, hold your tongue and listen. You see, if you want to get back with this person, the impression you leave at a dramatic moment counts a lot. The breaker will feel guilt and doubt following the break up. They will not be sure if they have done the right thing. Let them stew.

2. Leave them thinking.

As you listen and suffer in the sudden pain of rejection, think of a golden moment in your relationship. Something that you both considered a high point. If your relationship is not totally dysfunctional, that time may have only been one rough patch away. Is it worth mentioning casually? If so, just make it the last thought they have.

3. Give.

It is human nature to go back to what makes us feel good and what we know. If you can give love at this moment - even if just in a touch or a smile - it is powerful. Why are they letting this go? They wonder.

4. Survival Mode.

Now begins the well-known No Contact period. No texts, no calls, no letters, no emails, no stop-bys....This is for you. And for them. For you it is protection and stops the cycle of waiting and wondering. For them, it shows them that they must live with their choice. And the LESS you do, the MORE power you have.

5. Silence is golden.

If you maintain silence then you put all the pressure on your Ex. No easy let downs. By doing less, you do so much more. And it lets them think about what they lost. Every break in silence before your Ex reaches you lowers your value. The work you did was IN your relationship. Whatever you did will now pay (or not pay) dividends. It is what will fill their head as they go through their day. (Note: If your EX left you for someone else, then you must go silent right away. Skip 1-3. This relationship is likely over and should be unless well, your EX has....well, an incredible explanation.)

6. "How long do I go silent?"

Forever. What this means is that unless your Ex contacts you, you should stay silent.
Many EX's circle back. And when they do, wait! Wait and think.
Ask yourself: Do I even WANT to get back with this person? Is it a relationship I want? Was there willingness to part a natural human response to learning about themselves and you, or was it callous and thoughtless? The period of silence before a "circle back" could be 2 days or GULP (2 years). If your Ex re-establishes contact and your relationship had a lot of good communication to begin with - you might find that friendship can be an Ok alternative and downpayment on a later more-serious time for you - as long as it is on your terms and time schedule - maybe even after you have another person in your life.

7. When do I panic?

Never. Every break you do this way makes you a better lover and closer to getting Mr. Or Mrs. Right......If you chase or plea or beg you may get him/her back but in the long run it is a fissure that will always be there. Many of the happiest people I know had at least one "test-break" and then got serious. They spoke after a break at some appropriate point and had no agendas, just a realization that humans need to process things and that they were ready. The Breaker does have the responsibility to prove they are more committed - and again, the breakee has less pressure in this dynamic...so enjoy the role of entitlement for a while - but don't be mean.

8. If I re-unite with my Ex, how do I do it?

Don't hold a grudge. If you are going to go "another round" don't sabotage yourself by going back with revenge or bitterness....Instead, communicate. A lot.
Make it clear what hurt and what you want to work on. If this person has real potential
They will be excited about finding out what makes you tick and what makes you happy.
And you should do the same.

9. If I feel like I want to die, how do I survive 1-8?

Time. Time is a powerful thing. Get a calendar. 90 days is your goal.
Cross the days off...and better yet, write the emotions of the day in the box as you desire...write what you feel about your EX when you wish. You will see the adjectives change over time and you may be surprised to see that over time the intensity changes.
If you were married or in a relationship for a long time (5 years+)....you may need an entire calendar. Factor about 2 months per year. If you need more than one calendar, or cannot sleep or eat predictably for more than 3 months, I heartily suggest a good therapist. (Note: A General practitioner M.D. Can suggest one if a friend cannot).

10. So, what is the goal of all this work?

The right person for you is the one that makes your life better and whom you wish to make their life better. The right person is one that HAS YOUR BACK! If they do not, and/or you do not have theirs, then you are chasing pain, and preparing for your future offspring to live in pain.
That's pathetic. Look at your friends? Are they loyal and hardworking and care about who you are and what you feel - and are there for you - especially in a crisis? If so, you are emphasizing character and laying a life foundation. And your partner can be all that and MORE!

Breaks CAN actually heal us for the better, as long as we fight to get the best of them. That's the challenge of life. How do we handle adversity? If you handle it well, you are a rare person and are guaranteed great things. It's NOT EASY. I hope the 1-10 will make it a little easier. If you have to rush right to #4 it's OK. Just get yourself to as sane a place as you can handle ASAP.
You now have the advantage!

Hi bro. How long since you broke up? It takes time also. Moving on is not something we can do overnight. Plus if we really still love that girl(assume you are a guy). I just experienced it a few weeks ago, furthermore its near to my exam week. It was so stressful.
Here is some tips, on how i manage to control my feelings but some might not agree with me but i'll just sahre it anyway.

1) Never let yourself alone in your room.
2) Keep away all the stuffs that will trigger your memory with her. Put everything in a box and seal it.
3) If your room reminds you of her, all the chit chat/ what you did in the room while talking, you position of sitting or laying down while calling her, while txting her might remind you of her. Try to stay out from your room for a couple of days. Like staying at hotel/ friend's room/ relative/family house.
4) If you cant bear the sadness, please just release it all out. Cry until you cant cry anymore. Until you feel better.
5) Talk to someone. You might not know there is someone who cares about you. Your friends still care about you. Tell them your story so that you will feel better. eventually they will try to comfort you and give you some advice. But I know the effect wont last long, you will feel a bit sad after the chitchat but dont think too much about it.
6) Do a lot of outdoor activities. Jogging, swimming, snooker, or even go out and flirt with other girls with intention to play around laa..Nothing serious, just for you to have someone to talk to even its strangers. Flirt i mean not trying to get laid or something. just do it so you have a reason to smile. if you are lucky enough, you might get replacement sooner than you have ever imagined. XD
7) The next tips only works for me *at least - I called her sometimes to listen to her voice, and she also still contact me while she has new bf. she admits that she still loves me, but there is nothing much we can do about it. I am trying to accept the fact that we are not together again. and this situation makes me feel better. Knowing that she still loves me is something good, but we cant continue our relationship. Even sometimes jealousy killing from inside well, just smile lah
8) Go find a girl, or not necessarily A girl, might as well MANY girls to accompany you everyday. If not in real life, txting or whatsapp also good. Because from my experience, to much of "bromance" sometimes makes me bored. Like too much of hanging out with guy friends sometimes make me feel foreveralone.haha. I need to talk to someone with opposite sex.
9) Think positively. My bro once said this to me. "sudah-sudahlah tu. There is more to life". Well, i accept his advice because he is my role model in life. He also expereinced this a lot.
10) Last but not least, keep yourself busy with something. Looking for new friends, find replacement, talk to your dad/mom, watch movies, go ice skating, travel to other places and so on. Your world is not going to stop there. Just assume it as a new beginning of your life. Its time for you to find another awesome girlfriend.
Chin up and look forward bro. There is more to life!!! Go find awesome girlfriend! haha
ps: If you believe in God, talk to Him. He will be your loyal listener. He will give you the best
pss: just tell us your story. Dont keep it in your heart.