Hello Spectrum. I am so sorry you are in this situation. The abuse is not your fault. You deserve peace, unconditional safe love, and a bright future. Does your sister know about the abuse? Have you told anyone? Would you consider speaking with the police or your local doctor?
May I ask how old you are?
Sorry for all the questions. I just want to understand your situation better.
I hope you can find support from someone safe and trustworthy in your life.