Dave you are a good looking young man and I'm sure others have noticed this. Since you asked about self esteem this is my suggestion. Make a list of what you know to be your good points now what do you want to acomplish? Take a class that just makes you feel good. Creative writing, painting ,whatever you are intrested in. Set goals you know you can acomplish even little ones. Little steps forward are better than big ones backwards. Always remember there are others worse off than you and when you meet them give them a hand up.