Not sure what to do...

My dad sometimes touches me really inappropriately, such as trying to pull down my pants. He also says really sexual things, like telling me I look hot or saying that he notices when I’m wearing a different bra. He also comments on my sisters sometimes like about their boobs or whatever. Point is he also is emotionally abuses everyone in my family and I’m not sure what to do. I’m gonna be turning 18 in 5 months and I don’t know my options.