I need help. What should I do?

Ok so I know this girl. She's perfect. She's everything I've thought was great in a person. There is absolutely nothing wrong with her. I've been just about dying to talk to her every second I could. I'd even get my job done so I could help her with her work. I would do just about anything for her.. but I don't know if this is blind love or true love or whatever this is. I don't know if she likes me back, I don't know if it would work out between us, and I'm scared now to even think about it. To even think about asking her sends shivers up my spine. I already tried this dating thing. The other girl lied to me, cheated on me, and then didn't care when it ended. It was like nothing happened. For two years I thought that was love. True love. I was a blind fool for believing in that and now I'm scared to ask this girl out. What should I do?