I learned to love myself then lost myself once I got into a relationship

I never thought this would happen. I learned to love myself now I feel like I lost myself while trying to please a man that was playing me the entire time. I’m so stupid he emotionally abused me for over a year now I feel so stupid for allowing it to happen. The old me would never idk what happened to me. God help me I don’t want to go into depression. Any advice would help. I was doing so good before he came into my life.