I only skimmed the answers above.
First of all, never say never. Do you know how many divorced people I know who say they don’t want to get married again for various reasons? The majority of them do wind up in a relationship again, but for some it isn’t for years after the divorce. That’s just fine. Take your time. Don’t think about having a relationship at all. Why is there this big question or decision about it. You were married, now your single, focus on your kid and you.
Focusing on you means finding fun and fulfillment doing things you are interested in. Mind you, if you just got through the divorce you might not be in your best emotional state, which can mean it’s hard to enjoy things. Give yourself a little time, but actively go out and plan things, try new things. I know men tend to be not as good at the socializing thing, but that’s not always true, and I’m not assuming anything about you.
What do you like to do? What are you interested in? How about start going to an exercise class? Do you love cars? Seek out a car club. Are you interested in art? Take an art class. Are you interested in politics? Go to a political party meeting. Or, join a discussion group, or book club.
Do you love museums? Visit some of your local ones. Or, visit some other tourist attractions.
Plan a vacation and see a new place, you are now free to do exactly what you want without having to deal with another opinion, or having to worry about if the other person is happy. I’m assuming your son sometimes stays with his mother. Or, show your son a new place.
You can reframe your situation in your mind as freedom to really do what you want to do during your free time. You don’t have to make any decisions about being in a relationship or dating or marriage. Your only job now is to seek the fun, and help yourself to look forward to experiences and life. Put something on your calendar. Something to look forward to. Spend a little time planning it, googling about it. When you’re out, be open to talking to people, you never know what strangers will teach you.
You can volunteer too, try it. Try everything and you will find your way to learning what you like to do.