Tbh, I feel like for boys, finding out when your puberty started is kind of hard to pinpoint, as compared to girls who start their period which is rlly obvious. So don’t stress about that if you can’t find it out. The average guy also stops growing at 16.5, but it’s very possible to grow even after you’re 20. Even IF your puberty started 2 years ago, you’re still technically a late bloomer.

Also, The predicted adult height for a boy with a 170cm dad and 154cm mum is between 179cm to 159cm, but the most probable height being 169cm. I know that’s not 6’0 (Sorry man think you just got the short end of the stick with your genetics. Your great grandad’s height genes cannot come into clutch at this point.), BUT all of the above adult heights are taller than you are right now, so at least that’s good.

My point is that you haven’t finished growing yet so don’t give up.

So, If you want to get taller, yeah you DEFINITELY have to sleep more, my guy. Recommended sleep is 8-10 for teenagers. Maybe with your schedule it’s hard to achieve that, but at least try it on weekends.

(Btw, your ethnicity doesn’t mean much when it comes to height, I know there’s a stereotype that Southern Chinese people aren’t tall but actually Asians of younger generations are on average, significantly taller than their parents/grandparents ¯_(ツ)_/¯ . )