I'm Ashamed Of My Past

When I was younger, I did some things that I'm not proud of. I got into drugs, stole from my parents, and even got arrested. I've since cleaned up my act and turned my life around, but I still carry the shame and guilt of my past. I'm afraid to tell my new girlfriend, who knows nothing about my history. I don't want to scare her off or have her judge me. But I know that keeping this secret is eating me up inside.