I can t pee when I go to the toilet

In order to explain my business in detail, so the article is too long, but in order to help me, please read it carefully and carefully to help me solve the problem Thank you, I am a teenager in the second year of high school, and I have always had a problem, that is, when urinating, if there is someone next to me, I will definitely be nervous, I can't relax, I can't pee, I can only pee out when I go to a single room, sometimes go to the public toilet, there are people next to or in the toilet, I definitely can't pee, I try to relax, but I can't pee, and it's useless to squeeze hard, because I have this problem, so I'm afraid to stand there for a long time, others are suspicious, and I want to pee out as soon as possible, but I'm more nervous Sometimes the body relaxes, but I still can't pee, some people say it's caused by psychological stress, at school, I can't go to the public toilet, even if there is no one in the public toilet, I have to be nervous for a long time, I'm afraid that someone will come in, so I usually hold back, only when the flushing single room toilet in the school is open, I will pee, but the single room is not open now, originally I don't have this problem, but once I went to the toilet in the second year of junior high school, I suddenly became nervous, and then it has been like this ever since, sometimes there is an emergency, or someone else is waiting for me to come out, someone walks around next to me, even in a single room, I can't pee.

Am I sick? What do I do, how can I overcome this, is it psychological stress? How can I pee out?

How can I be like a normal person, I hope to help me, can there be any way so that I can relax as soon as I do it (similar to the simple way of saying something mentally and thinking about something) or what method to exercise myself little by little Please help me.

So that when I pee, I can relax right away.

It's your psychological problem.

Don't think so much, close your eyes and think that this is the toilet at home.