I would like to lose weight and keep it off !!!

Well to start off I am a female that is 16 and I won’ts to lose 40lbs, I have tried almost every diet out there but no matter what after a week of the diet I end up giving up, but this time no matter what I am going to stick too it…...but i don’t know how… Can someone give me some advice in what I could do? 4 years ago

I’m tired of the yo-yo thing. I feel better when I’m lighter but I have no self control! 5 years ago