I cna't, I just can't. Firstly I am so scarred of telling them, my mum will find out... she has threatened me not to do it. So I can't, also for reasons I have posted on the thread.
Thank you so much though! It means loads that there are people that want to help!

I too read your post. I know you don't want to go to the police, but you have to. Trust me, it will make everything better, even for your parents. Your mother might have some issues that she can get sorted out through counseling. If you go to the police they will do what they can for you and your family. Go to the police, kay?