I'm so sorry that happened to you. I went through something similar with my mother's boyfriend. He'd come into my room at night and rub against me, put his hands down my pajamas and touch me. I was 8. He used to tell me that he loved me, and that no one would believe me if I said anything, and that even if they did he'd have to spend his time with my little cousin instead. So I didn't say anything. He stopped when I was 13, when he tried the same thing with my cousin.
She's stronger than me though, and screamed bloody murder and ran straight to her mom, who believed her. I felt so terrible for years, enduring that just to protect her when it didn't help in the end at all.
I'm not really sure what I'm trying to say here. I guess just that I'm sorry, and that you're not alone, and I hope you're doing okay today.