The girl said you were heavy. I'll give you a plan.
1: Eat = have an ordinary meal in the morning (normally full) and have dinner at noon (normally full) = (an apple+a banana or tomato) (be careful not to eat too much meat, you can eat some beef).
Exercise = generally exercise at 5-7 pm, and don't eat before exercise 1 hour (bad for your health).
3 action = 1 trot for 20 minutes, 2 sit and watch+12. Do it three times in a group, and 2 sit-ups are the same.
Student? There's still time to take your time. Don't worry. I believe it will be very effective in a month or two. I hope you are a quiet and modest lady.