I am never full

I've spoken to doctors about loosing weight and all they say that I'm just young and I'll loose it. Recently I went to the doctor and I'm 175 pounds, I'm 19 and 5'2. It's getting crazy out of hand and I can't stop eating. When I try to eat healthy it doesn't work because t doesn't make me feel full. I don't want to keep gaining weight. I've recently started taking the pill and I fear it's only going to get worse :(