I am sick of being lonely?

I am 17 and I never had a friend before in my life and I wish I had one. I spend like 20 hours on the internet every day during the summer and I never hey out or do anything. none talks to me or even know that I exsist or that I am even around people fryer about me and I wish I had people to talk to. I have a facebook account but when I chat with someone we only say a few sentances to me and leave. I have terrible social skills and I am a introvert and I want to hang out with someone. People are always mean to me and saying mean things to me. I never have anyone to chat to and I don't do anything on the weekends. I sometimes wish I could kill my self and reincarnate into someone who would make more friends. I spend way to much time by my self and if I hang out in a group of other teens I get uncomfortable to be around them. The internet is my life and I am comfortable to be onthere. In real life I can't take it. I spend more time on the internet then with people. I never had a relationship with another girl in my life and I get really lonely. I have self esteem and depression issues and I wish I could have someone to talk to. I am spending two months in Las Vegas and I don't know what to do. I don't have anyone to tell other than my parents what I have done and none is interested. None knows I exsis and I am basically invisible at school. How go I get to talk to people? Sorry for bad spelling was using the mobile version of yahoo answers.