low self esteem

I have not been able to create much self confidence lately. I know I'm beautiful and attractive it's just in a untraditional way and lately I have been feeling down because everyone I've liked in the last couple months hasn't liked me back and everyone I have flirted with hasn't seemed at all interested .Its just the boys my age are really superficial and my classmates always used to pick on me for my looks. I don't know how to feel better .