In a public showers of a university, where do you dress of ? Inside the cabin of the shower ? or outside the cabin of the shower ? generally, how people do it ?
wrap a towel around your waist in your room, put on flip flops, and if you're that insecure put on a shirt. Don't be "that naked guy" nor "that insecure guy with a small dick", it isnt hard
Learn to do this, leave the stall, you can put on your underwear while the towel is wrapped around your waist