Help 😖

So the other day I knicked myself in the shower down there closer to the hole/butt area then I had sex the next morning not thinking much of until after when I was feeling like a burning discomfort so I just figured I needed to shower because I'm one of those people who get super wet to the point where it literally leaks down my legs if I stand. After the shower it felt a little better but here I am 5 days later with this still burning/itching cut. I don't know if it got infected or not or if it's even a yeast infection because the feeling is similar to a yeast infection. Also since that day I've had sooooo much discharge, it's clear but there's so much that it literally is like I just had sex, same consistency and even texture (TMI sorry) to the point where I have to wear a panti liner to prevent from walking around with a wet spot on my crotch. Any ideas or suggestions? I already have a gynecologist appointment at 8 am tomorrow but this is so uncomfortable I literally want to lay naked spread eagle until then.