WRITING: A LETTER: EXPLAINING A PROBLEM

I've had a problem recently. I want to go out at night and my parents say that at 9.30 I must be in my house. They are too strict because they think that I'm young, but I'm to older to return at house more later.

I'm angry because they don't want to talk about this. I think that they should be more tolerant about my life. They are always trying to protect me. But maybe I shouldn't be angry. I usually shout at them when I'm angry and it's possible that for that reason they sometimes don't trust me.
I'd really like some advice because if I don't do something soon, we'll probably have a big argument.