Weird discharge and itching everywhere down there

I’ve had this discharge for a while and now super TMI but my butthole lol is super itchy like suuuper itchy and everything is itchy down there and I kinda see a little discharge coming from the behind part too and I’m just like what is that!!

I just had my period a week ago but right now it’s 4am and I can’t sleep not because my lady parts are super itchy but because again, TMI but my butthole is itchy and it kinda hurts!! And it sounds funny but it doesn’t feel feel super hilarious to me and idk what to say to my mom or anyone to help me cause what even is it!!

Thanks for all the answers in advance I appreciate you guys