This sounds stupid, but can you tell me how I should go in there, what I should do and say if girls are in there, and then what I should do and like, what stall do I go into (next to the door, away from it) and like.. what do I do if the girls in the stall next to me talk to me&when/how do i leave?
Just go in like you would normally go to the bathroom, if someone talks to you in the stall ignore them because it's awkward if you talk to them, when you leave just leave like you normally would there's no shame, just be confident