lose 50 pounds and keep it off

Hey, I got a question. I hear this thing out there about how milk can help you lose weight and I know its healthy.

But is it TRUE that it truly does help lose weight?

Ok soo. Right now I weigh 160. I lost 10 pounds… But I gained it back.. I know Im doing something wrong.
Like for example : at the beginning i was eating lots of fruits & veggies but then i began to eat less and more less.

Anyways I work for 3 hrs at the gym/ 5Days a week which includes 30 minutes of weight-training to tone up also.

Now I think my problem is also that, Im eating chinese food take-out EVERY SATURDAY. Is that bad?

Please I need some tips & advice

My goal is to reach 110 pounds so i need to lose about 50 pounds to do that.

Yesterday I did buy strawberries,bluberries, bananas, apples and grapes and some carrots ,lettuce, cucumber & milk.

Please I need advice.

Do u think i should stop eating chinese take-out..?