How to fix a bad haircut for guys?

today was the worse day of my life. And then when I got out of school I went to get a haircut, showed them what I wanted and she still messed it up!! She cut the bangs way to short and it really looks bad. The only way that it looks good is if I wear a hat but I can't wear a hat in school. Please don't give a stupid answer but how do I fix this? I've went back up there twice and to another place today and it still looks bad. I'm trying not to go to school tomorrow because I don't wanna be made fun of.