It got kinda itchy and I must have scratched my eyelid or something because there's a little blood I'm assuming it's from my eyelid because I don't think that an eye can bleed.

Spent some time googling eye infections myself and it could be pink eye but I thought that normally infected both eyes. I don't really like going to the doctor and I prefer to wait out infections but my vision in that eye is bad and it hurts.