Im a 14 year old girl and im only 5ft (152.4cm)

Okay, -sigh-
You've proabaly seen this question a billion times already but I seriously need help.
My mum is shorter than me. (almost 5ft) and my dad is really tall (not sure how tall but he's really tall.
First of all, im indian. Yes you may be thinking asians are naturally short but NO, alot of them are quite tall.
Secondly, All my friends are taller than me, only about 2 girls are shorter and a girl who was really short grew so much over the holidays and shes taller than me now!
My friends are about 5ft4- 5ft8 which I consider SO SUPERRR TALL
and what am I 5FT AT THE AGE OF 14 ._.
I don't drink milk, I never sleep at night I DON'T KNOW WHY! I just seem to never get sleepy at night until like 1am and I know as a fact I need 11 hours of sleep EVERY night. ( I know this because I check how many hours I sleep. )
I know as a fact I have not grown at all for about 4 years. I grew only 1 Inch over the summer holidays (which was 5 weeks)
This is only because my grandma forced me to drink milk every night and because of the time difference I woke up at about 6am everyday and felt sleepy at around 9/10pm.
I thank my granny for that. :)
Now that im back and going to school ( Year 10, GCSE'S ) I seem to never sleep and never drink milk. I have a plan of doing an all nighter today (1(day)/11(month)/13) and not sleeping the whole day and then drinking milk when its night time and sleep at 9pm. Then I would wake up at around 8am. I always seem to fail at all nighters but I was off for 1week and its almost over!! Please help. How do you fall asleep at night?
I know the reason why I havent been growing for 4 years is because since I've started secondary school I havent been sleeping right.I need serious help. Also the clothes I wear are limited because im short :) PS I LIVE IN THE UK XXX

AND I DO NOT WANT TO EMBRACE MY SHORTNESS AND I DO NOT CARE IF BOYS LIKE SHORT GIRLS :) Sorry for the caps.....