Relationship troubles .s.o.s?

I am a 12 3/4 year old boy and i am 5ft 7 and havent had a girlfriend in 6months and that girl was the ideal girl for me but i dumped her and i couldnt regret it more, i am leaving the school she is at in a week... But more to the point, im not the most handsome boy in the year but im not freakishly ugly id like to think im in the middle.. I lack confidence with girls and my hair is flicked up from birth :( Any tips for me?