Living with someone who molested you

Hey, I'm 19 years old and I had a pretty decent life. Both my parents raised me and I have two brothers. Around age 7 or 8, my older brother molested me. He was 14 at the time and he used to do it more than once. I was so confused when I was little, I thought what was happening to me was okay. He made me do some terrible things to him, so I won't go into detail about that. Eventually, my mom found out and told my dad. They were mad, but never really got me help or even my brother. Ever since, he's been living with us. My mom used to tell me to don't say anything when I go to school when I was little. Everytime I talk about it to my parents, it's an issue. My dad said my brother was young and I was young . Also, told me to get over it in a arguement and one time my mom said that happen so long ago. I feel like I'm living a lie and my family is a fake. I been depressed and I've had suicidal thoughts  often. I also struggle with my self esteem. I don't say much I keep it inside, I only talk to my best friend but that's it. Everything has been swept underneath the rug like nothing. My brother still lives with us up to this day, he's 27. My dad is totally insensitive about this and he keeps saying I have a good life. I just want to know if anyone has or is going through what I'm dealing with. I'm thinking about moving out when I turn 20.