Abusive relationships

Okay, so I’m in an abusive relationship. I’m going out with this boy who is a year older than me, and he hits me calls me horrible things, and sexually assaults me on a regular basis. I hate this. I really want it all to stop, but I can’t get it to stop. I don’t know what to do. He brings my self esteem down, and makes me delve deeper into my mental health issues. No one knows about this. I hate everything.