Here's my 1minute speech script. please fix wrong sentenses if you find.
I wanna talk about some strange rules in my middle school and high school. Maybe some of you can empathize about this things. First, we have to wear school uniform's jacket inside our padding or coat. It was very uncomfortable because the jacket was thick. I still can't understand wearing a coat on a coat. Second, we can't wear gym clothes except for physical education. Gym clothes are more comfortable than school uniforms. I think we don't have to wear our school uniform all the time. But the teachers told me to wear a school uniform because the gym uniform was not clean. If we don't follow these rules, we can't avoid getting penalty. I searched on the internet about school rules and found that the rules still exist. It was very sad news.

Question

Here's my 1minute speech script. please fix wrong sentenses if you find.
I wanna talk about some strange rules in my middle school and high school. Maybe some of you can empathize about this things. First, we have to wear school uniform's jacket inside our padding or coat. It was very uncomfortable because the jacket was thick. I still can't understand wearing a coat on a coat. Second, we can't wear gym clothes except for physical education. Gym clothes are more comfortable than school uniforms. I think we don't have to wear our school uniform all the time. But the teachers told me to wear a school uniform because the gym uniform was not clean. If we don't follow these rules, we can't avoid getting penalty. I searched on the internet about school rules  and found that the rules still exist. It was very sad news.

miri04 · Answer

I wanna talk about some strange rules in my middle school and high school. Maybe some of you can empathize with these things. First, we have to wear the school uniform's jacket inside our padding or coat. It was very uncomfortable because the jacket was thick. I still can't understand wearing a coat on a coat. Second, we can't wear gym clothes except for physical education. Gym clothes are more comfortable than in school uniforms. I think we don't have to wear our school uniform all the time. But the teachers told me to wear a school uniform because the gym uniform was not clean. If we don't follow these rules, we can't avoid getting penalties. I searched on the internet about school rules and found that the rules still exist. It was very sad news.