I am a student, too. I lost weight without eating a diet meal. I'm just giving you some advice. I drink a cup of honey water on an empty stomach every morning (it shouldn't be difficult to do so), eat normally at noon and eat 7 minutes full at night. It's best not to sit and stand reading for half an hour after dinner. Skip rope 1000 times at night and do some sit-ups or something. Eating an apple at night is better and more effective.