Is it possible for a 13 year old to lose 40-50 lb in 3 months?

Hi,im a thirteen year old girl who its 5"4-5"5 and currently weigh 150-160 lb (i know i fat) but i need to know it this goal is possible and how should i do this? and if there''s any tip out there on how to get a thigh gap?
Things i already know:
*Drink LOTS of water
*drink green tea without suger
*workout (treadmill,lift weights,squats ect.)
*eat food that is proportioned to your hand
*have self control
*wear tighter clothes
*do not eat sweets
*eat healthy
*go to bed earlier

How to Lose Weight Without Losing Meat - The Weight Loss Program For Meat Lovers

Recommended Answer:
Hello, I''m 15 and have currently lost 67 lbs. if you want to lose that much in three months it is very possible, but I may suggest doing it in 4-5 months. If you lose weight too fast it can cause excess skin which can take awhile to get rid of. Good job for drinking tons of water you should drink about 8 bottles/glasses a day for your height and weight. If you want a thigh gap and weight loss this girl on YouTube helped me with my thigh gap, but lose weight first then try to achieve a thigh gap and toning. Her two channels are called blogilates and blogilatestv. She has great workouts and advice. P.s. a little motivation that helped me workout was buying workout clothes. I don''t know why I have a obsession with them and love using them haha. Also, you can eat sweets just have self control and dont eat a lot of it. I hope i helped ! Best of luck to you ! x😊