No girl will ever love, not even like me. I'm overweight and ugly and nobody likes or cares for my existence?

Every girl I like rejects me. I'm not going for the wrong girl, whatever that means. The girls I like are usually smart, respectable and beautiful. When being rejected, most of the time it's in a nicer way like sorry but you're not my type, or something. Still hurts real bad but better than walking away hearing her, with her friend laugh. I'm sorry if I don't drink or get high or anything that most people my age (17) do. I have no way to meet girls now that schools over or any way to start a conversation. All I want is for someone to like and care about me and to talk to and to be in a relationship with and to support me and help me with my problems and someone to spend my time with and someone to love but thats not the case with me, no, it's the opposite I'm sitting on the computer on a weekend, 4th time on yahoo answers complaining about my problems trying to get help when I know I wont but this is all I have. Nobody else to help or talk to, I don't have any friends, I don't get invited anywhere. I've been depressed for over a week for this and more problems that I dont want to talk about right now. Please please don't say there's someone for everyone or "one day youll find someone" because I've been told that and people only say it when they know I'm right and I will be alone forever and they just want to be nice and try to help but sometimes this gets me depressed enough to keep me up all night and make me tear a bit and more but whatever I guess this is how life is going to be like until whenever I die