So I've been really pee shy for about 3 years now; how do you manage that? (...)?

It just won't come out and my head burns when I notice. I often can't manage to pee in the public urinals if there are people. I wouldn't ask about this usually, but I figured why not. It does take alot of time/makes discomforts last. I have a plethora of issues with nudity, sexuality, isolation, hiding, anxiety, slight paranoïa (and such) and so on, but it really feels unrelated, and I don't think it would've caused it to start during the year it started. I've always peed sitting down at home, but this was never an issue before. It actually feels strange how I can't sometimes, but I figure it's at least mostly psychological or stress related. I can't analyze obsessively and do manipulations with my connotations and feelings anymore to affect these types of mental structures. I will not plan anything initially hurtful, and I lack complexity, divisions and routines for me to really affect anything of intensity like this. -How would you help it in my context? -Is it too abnormal to pee sitting down in public toilets? -Insights maybe? It was a sudden change and I had to start strategizing for when and where I'd go pee. It's annoying to just have my head burning and have to head out when I clearly didn't manage to pee. (22) I guess it's more of a psychology question than a men's health question, right?