Orc hunter > Troll hunter. But that just personal preference.

Hunters generally are very easy to play.

Before you learn how to kite, you must learn to "jump shot".
That is jumping mid air, turning around (or strafe sideways) to hit 1 arcane shot or concussion , while maintaining running speed foward. (without enemy touching you).

While you are lvling, you must also know what type of pets are for you and  what type of pets to avoid. (because there are some cool looking pets come with caster stats, which means they have weird lower stat gains when lvling up)
Just not to confuse you, just go Boar, Cat or Ravager.

Besides that, remember to pick up new skills from new pets.
Every time you tame a pet and use it for a while, you learn skills from them which can be teach to other pets.
Dont run around with a cat with Claw1 or Bite1 lol.
Check http://petopia.brashendeavors.net/ for more info.

I can see that your armory profile shows that your MM spec is horrible, no offense.
33 pts in MM without scattershot or trueshot aura?
Concussive barrage wont even help you in lvling.
Combat experience AGI n INT gain is NEGLIGIBLE at your lvl.
Improved concussion shot is a PVP talent, points better spend elsewhere.

I know you wanna look cool shooting like legolas or watever dota hero u like, but MM spec is inferior for lvling.
You draw aggro from pet easily in MM spec, you are super mana dependant in MM spec, your pet's focus generation is poor.

Just go BM spec for lvling.
Trust me, it makes lvling SUPER ezmode for you.

Heh, BM spec are cheap to maintain too in raids .
I dont chug in that many mana pots in raids as BM spec.
MM or Surv burn mana pots really fast because their shot rotations weave in Multishot which is freaking high mana cost.
Heh, manage to tame that rare ghost wolf before they nerf it last patch.
Now hunters cant get that anymore. Hunters who tamed it earlier are free to keep it .

Wolves are not that bad la. They have Furious Howl which melee group really like it.
The only thing is they have bad focus dump. (Means for all their skills have long cooldown, they generate more focus than they can utilize it)
I think they are decent buffer pets for MM or Surv spec when your pet type doesnt really affect it lousy dps.

Summary;

Important tricks to learn:

1) Strafe shot & kite
2) Chain trap

Once you learn these, everything else will be easy. My opinion anyway