There are several reasons why a person gains weight. Sometimes eating too much is actually a manifestation of a more serious psychological condition like depression. As you gain more and more weight, your self-esteem becomes lower and actually causes you isolate yourself and eat more.
Unfortunately, being overweight comes with serious health repercussions. You could have diabetes, heart problems and other diseases.
To avid these diseases, you could try slimming down or losing weight thru a number of different methods like dieting and exercising. If you have difficulties doing it yourself, you can join groups like Weight Watchers.
Eating sensibly would also help. You should avoid eating foods that are laden with fat and carbohydrates. Starving yourself is not a solution. Your body will simply adjust to the starvation and refuse to burn fats.
Controlling what you eat is healthy as long as it does not become an obsession. You may end up slimming down and yet have an eating disorder. Exercise with a friend if you want. This makes slimming down easier and more enjoyable.
Your family can help you by providing you with moral and emotional support....