Well- I may overdo it again but here we go. I completely relate to you're situation or problem. When I'm looking around through photos or looking at pictures of my friends I feel like I'm never going to be as pretty as them. They look good in everything. Every time I see something they're wearing I try to go around and see if I would look equally the same or just different. I look terrible in everything they were and now I just think I look terrible in everything but rubbish. The only nice things I have been picked out by my parents so technically I don't choose my own clothes. The one thing I love from my parents is a necklace from my dad. He got me a dragon necklace which has a polished, light pink, crystal ball inside. I treasure it with my life and I'll never leave or forget it anywhere. I hope you can find something like that to feel nice every time.