24 yr Hits Mom

All I have done in my life is try to make other people happy. My son since he turned a teenager has hated me. I stood by my rules. His has very little contact with is real DAD. His stepdad, that he called DAD died 2 years ago. My son has been living with me, and I have always kept quiet over things that should have been addressed to keep peace.

My son started going back at me when he was 15 yrs old in my face and will tell me he will kill me, and will hit me. It has been quit awhile since that behavior, but it happened again. I kicked him out of my home. I am so sick to my stomach. What is my next step. I do not want him to come back home but I do want a relationship with him. How do I do this now? Any advice, please