What should I do? I'm just not comfortable. HELP!?

I feel awkward about my body, so I always wear extra large jackets to cover it up. I'm not skinny, or fat, I have an hour glass figure, it just needs to be toned, so I guess you could say I'm thick, but I just don't feel comfortable with the way I look, My friends constantly try to convince me that I'm fine the way I am, but I don;t believe them, I just don't look like other girls, I'm different, I have different interests,and I don;t really ever wear anything attractive, just sweats and a jacket, or jeans and a jacket, I mean, I;m not trying to impress anyone, but most guys don;t find me attractive anyway, and I feel awkward if they do.... I know, I'm weird and crazy, but please do HELP!