I'm in high school and I'm gay and I just feel really alone?

I always get really obsessed with celebrities and right now it's Naya Rivera (from Glee). People keep talking about how they got to meet her at the Meet and Greets for Glee Live and it makes me so jealous. I know that even if I met her, it wouldn't matter a lot because it's not like she would remember me and it would only be a few moments of my life and it wouldn't change anything. However, it's just hard for me to deal with sometimes. I'm a lesbian and I'm in the closet and I want a girlfriend so bad but I'm in high school and it's so difficult for me to meet people. I tend to fixate on celebrities because I am so lonely in real life and I don't know how to deal with it. I'm sure I'm not the only one who has problems like this and if anyone else found a way to deal with it or if you're going through the same thing, can you tell me? It would make me feel a lot better to hear than I'm not actually alone even though I feel like I am.