body image issues

I'm 6' tall and I weigh 176. I like how I look in clothes, but I hate buying clothes. The sizes upset me so much and sizes that used to fit are way too small now. When I take my clothes off, I hate my body so much. It makes me want to cry. And please don't tell me "you're not fat" because I know that technically I'm not. I just see a different version of myself that other people see.