Im giving up on him? Whats wrong with me? How do I seem prettier?

Just be yourself and smile. Ask if he's up to much at the weekend,if he says nothing,theres your chance to ask if he'd like to go to the cinema maybe? Just say you and some of your mates are going and ask for his number so you can arrange times etc. At the last minute why not say your mates have pulled out and would he still like to go with you? In a few years time you will probably look back and laugh at what you were worrying about. The right person will come to you.