I know it's hard to forget when people say things that hurt your feelings, but you have to realize it's thier problem, and it must stink to be them and see the bad instead of the good in people. I am sure your reddish hair is a trademark that makes you you and unique from everyone else. Think of all the girls that go get their hair dyed red! I hang onto negative thoughts, too (I'll remember something someone said to me long after they forgot, I've been accused of making things up). But, part of the recovery of being shy and easily embarassed is letting things go. Ever think that someone brought negative attention to your bright clothes because they were jealous you had on such a pretty outfit?