Problems with parents... any advice?

Well today I was supposed to go to my dad's house. But I really didn't want to go. If you didn't know, my dad has anger issues and can get abusive. He sleeps all day and there's never any food at his house, so I'm constantly taking care of Gwen (my little sister). So anyway, I come home crying cuz I don't want to go, take care of Gwen, and in the end, come home with bruises (which I have tried my best to hide). It's hard because I love him and usually don't get to see him as much as I would like, but lately I can't stand to be around him by myself. So this weekend I'm staying home, and Gwen is with him. I feel guilty for not being there for her, but I don't think I could take another day at his house. He's upset now. He know I don't want to be with him. My mom and step dad have told me to confront him and tell him I feel used and don't enjoy myself at his house. But what they don't know is about the bruises and his anger. If I tell him I don't want to be with him, what will happen to me, or even Gwen? If he hurts her because of something I said, idk if I could ever forgive myself.

Any thoughts on what I should do? I'd really appreciate your opinion.

Hey, Miss Magnolia Muffin Tin.

I have been hearing these stories for a while, and have been praying and hoping with all of my heart that you would ask for help. Now you are beginning to get some. You have no idea how happy I am.

But back to the subject. I really don't know how much of a help I am besides being here. I need you to know that if you think that you are not safe there for a reason, and if you think that Gwen would be safe there, please realize that you did the right thing. If anything happens, I do not believe it would be your fault, because you aren't in control of him. Maybe he will realize what's going on, and everything will be good.

Thx Eric. Just knowing you're there helps a lot. I know some of the things I talked about are out of my control, but I just wish I could do something about it.

Have you talked to your mum and step dad about it Maggie? You really must, not just for your own safety, but for your sisters as well. When you have been hit and it leaves bruises, that is abuse, there is no other word for it, you MUST tell your mum at least.