Hi there
Thanks for getting in touch, it is very brave of you to do so and I am happy that you did. Home sounds really tough and it’s understandable that you would feel scared. What your step dad is doing to your mum and your brother is wrong, as is what your brother is doing to you.
It sounds like you have a positive relationship with your step sister as you always used to talk to her about things that go on at home, but you’re banned from going to her house. Are there other ways you could talk with her, perhaps by phoning, through text or msn?
You’ve been trying really hard to do things around the house and you’ve done really well by trying to sit with your mum and talk to her. It sounds like it's hard for her hear what you're saying at the moment. What is happening to you and your mum is wrong. If she would like to talk about what is happening to her she can contact Women's Aid on 0808 2000 247 or visit the Woman's aid website.
ChildLine would like to support you (and your brother). A counsellor could talk things over with you if you want to get in touch. Calls are confidential so nobody would need to know, unless they feel your life is in immediate danger. You can do this by phoning 0800 1111, or by email or using 121 chat on the website.
Remember, if you ever need emergency help contact 999 for emergency services.
Take care
Sam