My parents abuse and I don t know if I should tell?

My dad had done horrible things. He s spit on me, my sister, and I. He slammed my head into the wall hard enough to break my glasses, bust my lip and make it bleed, and my head hurt so much I felt dizzy and couldn t see for a few seconds and it hurt for days. He s punched me in the head hard enough to also make it hurt for days and make me dizzy. He has hit, kicked and punched me, and dragged me through my house by my hair numerous times and threatened to kill me. Once he threw me onto the ground and stomped down on my ribs and pressed his foot down on my throat and face. My mom throws things at me, shoves me and hits me. She grabbed my arm and dug her nails in deep enough that it bled. She tells me that if I tell the police/CPS about things they ve done that I ll be put into foster care and be raped and beaten because she s afraid of losing me. I don t want to live like this anymore but they are going to help me pay for collage when I graduate. What do I do. Deal with this for a few more years or have money for college. I don t think I ll make enough unless I stay out of collage for several years which will **** me over.