Wonderful advice Geoff, that's the same kind of thing I started doing when my relationship broke down. You find your community, and the rest will come.
This post really resonated with me - I've been there, similar age in fact, and found it challenging... however in the time since, I've learned to love and value my time alone. I don't get it too much these days, but when I do, I embrace it.
Find connections. Join a club. Take up a hobby. Make the most of your time alone - deliberate actions on weekends, like going for a swim (you'll meet people if you swim regularly), a hike (same), buy a motorbike and join a casual riding club, take up amateur radio and make nerdy friends, work in a co-working space and get to know people even if you don't work "with" them, you can still work with them.
Then there's the more unusual suggestions which can be just as much fun - and I've done many of these and found value in them! Join a local volunteer fire brigade if you have one. Take a class and learn something new. Never been artistic? Join your local community college and take a class.
Life can be hollow, and as I tell my kids, it's what you fill it with that makes it full. Just as with boredom.. sometimes its good to be bored, and sometimes its good to experience hollowness and down, because then the ups feel so much more real.
I wouldn't jump straight into a new relationship (or even try to). Learn to love yourself and live with yourself, and the right person will come when they do and not a moment before. Lean on friends and family when you need support, and be there for others when they need it too. This is great for the soul.