I think I'm falling for this girl?

So there's this girl Shana... and she's sooo sweet, and funny, and cute:) She's bisexual, and I think I am too, because I have only had crushes on girls since middle school started. But I'm definintally falling the hardest for her. I'm obsessed with her... whenever I see her my heart just flutters and my stomach twists. I catch myself smiling all of the time just by thinking of her. I just feel like she doesn't want to talk to me. I'm so nervous around her because she is the emo/scene type and I am so not. I have depression, anxiety, bulimia, and I cut. She has & does all of that to. I just want to make her better before I even fix myself, which I really need to do. Does anyone have any advice?