It is common on this sub for people to post about looking for friends, meetups etc. I get it. We've all been there at some point.
A lot of the recommendations have their drawbacks: sports leagues - maybe you're not sporty, bars - maybe you don't drink, work friends - maybe your workplace sucks!
So here is my recommendation, which is good for the next six weeks or so: join a political campaign. DC's election season is effectively over by mid-June, but it's a great time to get involved: knock some doors, get outside your comfort zone, and join forces with some like-minded folks. You can give as much or as little time as you want, and it'll be over in six weeks. Low committment, high reward.
You will meet a lot of people very quickly, it will force you into new experiences, and at the least you will have more stories to tell. All the campaigns provide a minimum of training so you won't be going in cold.
There is no greater joy in life than working together with your fellow citizens toward a shared goal — but it's hard to know that until you try it. Phone? bad. Computer? bad. Constant introspection and self-doubt? bad (and exhausting). Find a candidate you like (or hate the least - go RCV!) and get outside and volunteer - it's lovely weather, after all.