I' can understand what you are going through. I went through the same thing when I was a teenager. My mum found out a while later and she took me straight to the doctors. The doctor said that if I didn't stop I would ruin my body and maybe not even be able to have children. That really scared me. I did stop. I have 3 lovely children. Two boys and a girl and they are all fit and healthy. The boys are 19 and 16 years old and my daughter is 17.
Problem is that at the time that I was doing that I was not fat, but I felt as if I was, now though I am overweight and that is because of what I did when I was younger. I tried all diets, and the more I lost weight the more I'd put on afterwards. I advice you to eat healthy foods and please try to stop what you are doing.

Take care Lukey