How do you talk to people?

I have some concerns about certain things in my life which I think may be bad and need to be told so I can stay safe and happy.

But I don't know if I should tell my mum and dad. I don't want to get into trouble. But then if I did decide to tell them how would I do it, I can't talk and it's to much to put on paper in a letter.

How would you do it?

Thanks guys.

Jess xx