I was at work, not ignoring you.
My dating advice might seem archaic, since I've been off the market since I was 92. But I'll try. Have you matured or changed your tastes/priorities since you last dated? It's possible the women you would be interested in (and vice versa) no longer frequent the same playgrounds you are going back to. Kind of like a 30 year old woman trying to shop for clothes in the teenie bopper stores. Would you consider joining a group, or taking a class at a community college, for something you find interesting? You might meet a girl in your class who shares your other interests as well. Even if she turns out to be just a friend, maybe she has friends you could meet through her.
I hope my advice helps you, because it didn't do me one damn bit of good.
I was a serious jerk magnet.
What finally worked for me was dating (and marrying) one of my best friends. Do you have any female friends that you would consider dating?