Go on a diet

My weight is 72kg seven years ago. After I lefe army I am getting fat. I remember my heaviest weight is 90kg. I really can not accept this result. So I try to go on a diet. Afterwards I keep my weight to be 85kg for five years. When I study at university my life is getting busy. I have to work and study in the same time. Now my weight is 81kg. I think it is a good news for me. I wish that my weight can be 76kg in the future. Now I need to make my weight below 80kg first. I should eat less and health. Stop to eat junk food and try to do some exercise.