sounds to me like you're stuck inside your own head (is that the right phrase?), you obviously like her, so go for it, if things don't go well, at least you tried and got some experience from it, i have learnt so far that when i was telling myself 'there's no point, it wont work out between us' it was just a limiting belief, and i reckon that kind of applies here, just need to lean into your fears on this one...

hope this helps in some way