my mom doesn't care...my dad calls me a mistake...no one except my friends care about me...

I remember 15 as a really tough age. A lot of what you are feeling is due to changing hormones. At 15 , I had the same problem. I had to get through it as best I could. Now they have temp. medication to help you through this . Tell mom and maybe she can tell the doc about it. He will fix you right up.