I’m emotionally broken/ empty

My boyfriend of 4 years has broken me emotionally. I feel so empty and broken. Now this I am completely broken he wants to give it his all but I can’t no more. I’m sad to be giving up 4 years of love, hate, pain, and joy but I deeply believe that’s what is going to be best for me. I moved out of the house he owns and am now living with my mom and dad again. I have no friends and feel so alone. I’m trying to get myself, a car, a job, and my life together. How do I become whole again? I need friends but don’t even know how to start.