Too afraid to talk to/ask out gay guy

Okay so I've been lurking a bit and I noticed a post about how you guys helped someone else, so gonna throw myself in the same boat.I've known I'm bi for about a year now, and I kinda wanna explore that side of me. I met a guy at a party last Halloween and he's gay. A lot of my friends from school know who he is and have known him for a while and are really good friends with him. I've only recently joined this new school (I'm 17). We've chatted extremely briefly and I'm very nervous to talk any more to him,much less ask him if he wants to meet up!I'm also in a sticky situation of having a rather conservative catholic mother who has a dim view on homosexuality, so wrestling that to workout, and also the fact that, really, I don't feel good enough to be with him, not sat because of how I look, but because I see him as too good for me, based on things fiends have said.The guy himself is damn cute. Like, I've hardly ever admitted I like a guy, but he's sorta the first guy I've ever liked that I know personally. He's also the first guy I've admitted, to other people, that I've liked. I just don't know what to do!I'm quite stuck! Because I wanna try things with a guy, but I'm also too afraid and ashamed to try! Help!! What should I do?Tl;dr, met a gay guy, too shy to talk to him, feel ashamed, help!