This might be a great time for you to enjoy some single-life, alone-time, exploration!
When you are a bit more ready, maybe try doing things outside of your comfort zone?
For example... ever been to the opera? Or the local theater production club? Ever attend a random club or hobby meet up, involving something you wouldn't normally ever think to have as a hobby?
Just to spitball some more examples... I don't know...
A culinary arts class/club? A book club. Knitting club. A fitness walking group. A hikers club. Rock and fossil hunters club. Electronics club. Poker club. Meditation club. Dance class club. A local animal rescue shelter. Star Trek convention. Etc...
Maybe even a model airplane and drone club perhaps? A cycling club? Self defense martial arts class? Metal detecting clubs. Even stamp collector clubs?! (Stamps sound boring, but who knows: maybe there's an awesome group of people at your local stamp collecting club?! Or maybe not? Only one way for you to find out!)
NOTE:
When you arrive at the meeting, just be upbeat and friendly, and say that you're a total newbie, but you've always had a bit of an interest in XYZ (even if you never did!)... and just wanted to check out a club meeting...
And if they seem cold, and you get a bad vibe, then f'ck 'em!
Just turn around and walk right out, and try another club or meet up!
You'll eventually meet some new people, learn about some new hobbies.
Or hey... even try just visiting a random neighborhood, or random restaurant or pub (be brave and try new restaurants alone!) if some of the restaurants in your area are still open, or some attractions in your own city or region that you never really checked out before.
And again: go to genres of things you normally wouldn't, like maybe a jazz performance, or get a ticket to the opera or ballet and check it out just because it's something you would normally never do, etc... Check your local listings for events, and go to ALL of them! (Or as many as you reasonably can.)
Now is the time to EXPLORE alone. Have fun!
After that, I think you'll find you might just start to meet some new people, that provide a deeper fullfillment in life... maybe.
You might even meet the romantic person of your dreams, or find a new true best friend (all because you took that culinary class, or all because you visited the stamp collectors club!)... and then you'll be able to take that person to all the amazing hiking trails you found, or cook them a great meal you learnt at the culinary class, or take them to the more fun events you discovered during this self-adventure along time.
And if not, then that's fine too: because you'll be exploring and enjoying so many new things and experiences, bringing deeper meaning to your life on your own, and probably even discover a really fun fascinating new hobby you never considered before! All of this alone is an interesting life, well lived.
In the meantime if you're not quite ready yet to get out there, then that's fine too.
Maybe just chill by yourself, enjoy binge watching your favorite movies/TV shows... maybe order out some of your favorite food... Maybe have a bottle of red wine here and there (but be careful not to over do it with the whole wine thing).
Maybe consider getting a couple of cute cats or kittens?
Kittens have the advantage of being you there with you for a longer portion of life, but elder cats at shelters often make incredible, amazing, cuddly, gentle pets too, just to give you some loving company in the meantime.