Could anyone guide me how to get excellent BMI.

My height is 169cm, weighing 105kg...

How do I erase my big belly and waist.

Can I reduce my weight to 65kg while building lean muscle body within one year?

Okay! Let's do our best, this year, is a year of revolution and changes!! Just like a snake that sheds off its skins, so we must do our best to lose weight

I want to drop by and say, good luck. And stay consistent. I noticed there is still a lot of misinformation here, some say calories in and calories out does not matter (which is so bullshit). Just be very careful about the information. Also want to drop by and say you can not specifically reduce belly fat or fat at certain body part. It does not work no matter what you try.

Remember, the key thing is as simple as these few words... Eat less move more.

Eat less means calorie deficit, you burn/use more calories than you eat.

Move more does not mean doing cardio only or run 5 to 10km everyday. Something sustainable. Even just from in the past you walk 5k steps a day, to 6k steps a day is already more. Of course the more the better.

It's a mindset change as well.

Now some personal small tips.
1) find some vegetables that you like to eat. Most vegetables are low calorie. It does not matter that much. The key thing is you have to like it else you won't eat it. The nutritionist did tell me vegetable is "unlimited".

2) with fruits, you have to exert abit more control but watermelon is low calorie, so is strawberry. But strawberry mahal in malaysia. You do have control the servings per day. Last time the nutritionist told me 2 servings a day.

3) portion control. I have a mini weighing scale to weigh my snacks. I still eat but I portion control. If you can track calories it's better. If no, it's also ok. If the potato chips say 30g per serving, I will weight 30g to eat. Something like that.

4) Intermittent fasting works well for me. May not work well for everyone. The reason why IF works because you eat less, hence calorie deficit. If you do IF but binge non stop during the eating hours, it still won't result in fat loss. In my case I like IF, because it's easier. I just don't eat. If I eat 3 meals a day, my portion control becomes tougher because you can only consume so much calorie a day.

5) you cannot out-exercise a bad diet. Just does not work. You can Google this. How much calorie you can burn running 5km Vs eating a piece of chocolate. Exercise is good, and important but the main purpose of exercise is NOT fat loss.

Other notes... Do track your weigh consistently, ideally daily. On a daily basis, our weigh can fluctuate quite abit. For me 1% fluctuation daily is normal. It can go up and down either way. But as you monitor it daily you should see a downward trend.

Some influencer I recommend watching
1) Jordan Yeoh - IG
2) Keancheonglim - IG / Tiktok - his content is in mandarin / chinese but his video has English subs
3) Ben carpenter - IG (@bdccarpenter)
4) Eric Roberts - YouTube, Tiktok (ericrobertsfitness)

2 is fun to watch if you understand mandarin. 1 talks about both nutrition and weight training. Choose your content.

Please Do Not start Jogging now at 105Kg to protect your knees. Once your weight drop to say 85Kg then can consider.
For now brisk walking at HeartRate (HR) Zone 2 or till Zone3 is fine.

Alternatively, take up swimming.

Eat chicken joint can heal joints. Unker no strength to train, later can upgrade electrical wheelchair 25km/h max speed
Kettlebell swing will hit the 'balls', 10kg possible break the ball. I'm not recommend that

how progress so far?
today 1 month edi.
me stuck at 94kg... even fasting a week. 

eat less but lousy food last week.
instant noodle + low protein + soft drink.
should eat more protein + less processed food.

about 10 years off track edi...
Should we lift weight?
old now, muscle mass is losing fast.

only leg exercise i like if squat.
lunges too hard but really powerful result.
marching leg raise also ok.

Yes. Some guy named Azri Walter gave me the same advice. To start walking first. Thank you for echoing the same advice and with bit more info

how's the progress now?
i added weight, now 96 edi from 94.
aiya... eat too much rice this fasting month...
normally i eat rice once, now eat twice, sahur & iftar...
fasting not so hard edi...

Im also in the same boat..

178cm 107kg

Been strength training and doing cardio.. belly and waist smaller but not much weight lost

Lets do our best together this year

I reduced from 82kg to 68kg within 40 days. Because I kena severe pancreatitis and hospitalised. Lol
This is the fastest way to lose weight. But definitely not recommended.

On a serious note. Yeah just drink water and cut sugar is the fastest way to lose weight.

Is it healty to lose that much mass in only 1 year?

Don't eat after 7pm.
Eat only lite food like oat with water or milk for dinner.

Weight maintenance is a lifestyle.

use to feel that way also,
but as you aged... you had enough of all the good food already.
taking care of health become main priority...
healthy body (mental + physical), happy life. makes sense, right?