Broke up after a year and a half

I moved to a new state about two years ago and I didn't know anybody/still don't know anyone. I've been in a relationship with the same person for most of that time, but we didn't have anything in common, we never went out on dates, we hadn't had sex since January, and overall, it really messed with my self-esteem. I broke up with him after feeling particularly overwhelmed one day and I feel guilty and like I may have made a mistake even though I know it wouldn't have worked out since we didn't share the same values. Can anyone offer me any advice about moving on when I don't have a support system in the state?