Suicide is the cowardly way out. You have to figure out the good things in you. Things why people should acknowledge you for, respect you and value you for. You won't move on if you don't fight your fears. As it's been said in this forum: Fear feeds on fear. If you fear living and having a social life (of course, one step at a time), you won't go places. Fight your fears by facing them and wanting those usual SP symptoms to happen, like blushing. If you want to blush like there's no freaking tomorrow (and you have to REALLY want it instead of faking it), it won't happen.
Do things you enjoy doing in a regular basis. Exercise, listen to music, take a walk at night after dinner and just chill out. As you said, you have one friend. Therefore, you should treasure his friendship and cherish the moments you have with him. Try meeting more people too. Just remember: Your case can't be the worst. There are always people in worse situations than yours and still they fight for their right to live. If you don't fight it's impossible to move on.
There are always support groups for people with these conditions. Either a psychologist or a psychiatrist (don't forget group therapy with people facing the same problem), there are always people there for you.
You said your father didn't pay attention. Well, perhaps if he knew what's going on in your life he'd understand and give you the attention you need. My folks only noticed how serious I was when I showed them my arm, which I had cut pretty bad with a box cutter. I'm not saying you should cut yourself, obviously, but you should talk to your parents and tell them how you really feel. How do you suppose they can help if they have no idea what's going on? They won't guess, and trust me, finding out how you were feeling after finding your dead body isn't gonna help.
Talking to the people that are closer to you is the first step. It's a big one, but even if it was a small step, at least it's progress! If I hadn't spoken to my parents about it I'd still be the same old depressive, blushing and absolutely social phobic guy. I still am dealing with my social phobia, but I'm fighting it the best way possible and I couldn't have done it without their (and the rest of my family's) full support.
Don't be a quitter. Life's too short to be ended sooner than predicted.
