New Start (Trigger warning)

Haya everyone I am new to this site but I have decided that I would like to share one of my stories despite it having a long effect on me. Here it goes. When I was in Primary school (4-5 of age) my sister experienced being bullied from a group (about 8-9 years olds). My parents did everything they could to stop it but they didn't. Being the kid I was I decided to take matters into my own hands. I struck a deal with them. The deal was that If they stopped, they could have me and do whatever they pleased. Being older I can see that this was a bad decision but as a kid, I believed there was nothing to lose. They took the offer and I regretted making it. The next three where nearly the hardest I went through. Any type of abuse is wrong especially sexual abuse against a child. a lot of the time I blame myself and how this has affected my life. But I am trying to find that new start and I would like to know that I am not the only one suffering.