Am I doing something wrong? ... =(

Don't worry about relationships for now. That comes later. Forget what society says and what they pressure you with. You're in control of your own life, not them. You make your own choices. They don't make it for you. If society thinks it's the norm for people to 'lose it' before 18, whatever. Just do what you feel is best for you.

You need to step out of that fear zone or else your confidence will continue to decrease and you'll regret more things. If you have the chance, you should volunteer because that's a great way to be socially involved. Social interaction is a good thing and by volunteering, you have a better chance of that interaction than with avoidance. Also, what are you interests? Music? You're going to be attending music college, right? Well, see if you can converse with some of your classmates or people that sit around you. Small talk will gradually spark a bond. For me, I have my own interests in comic books, so you'll most likely find me lounging in comic shops and talking with the people there about comics.

You say you're ugly? Man, don't worry. There are tons of people that are uglier than you. Don't lose confidence because of your looks. It's about personality. That's what gets you friends and that's what makes you feel better about yourself.

Jam it back in, in the dark.