Really struggling to ask someone out.

There's this girl who I'm pretty much obsessed with, I feel like I'm having a heart attack just passing her in the hallway, and she's gorgeous and funny and clever etc. - all the usual stuff, clichés everywhere.

Basically, I think I'm love - which seems dumb because I barely know her.

I've not spoken to her face to face since the end of last year (only because we did a college project together), we've had brief chats on facebook messenger - although it's mostly me just asking her questions and her answering, she doesn't seem all that interested.

I've spent the last two days going on messenger every couple of hours, and whenever she's 'active now' I'll write something like - 'Hey.', or 'You doing anything fun this holiday?' (We've got a two week Easter break, I'm already bored), then I delete it...it's not that it's hard to start/have a conversation (certainly very easy to send a message), but I'm finding it impossible to start one where I can move onto asking her out, especially without looking weird.