Feeling stuck would mean you don’t have a projection for future. Maybe nothing to look up to like a goal or some aspiration. Happens to best of us.
Making friends as adults is difficult. Harsh Truth - you need to go out to meet people in some community like meeting people in book club or running or something like that.
Best to start with something you like, say running, if you are in BLR - you can go to Cubbon during weekends walk and meet people. I once saw people doing improv standup and people joining as well. Talk to people there.
Now, how to go from talking to friendship? Don’t force friendship by oversharing and trying to relate where it won’t happened naturally. Meet with as many people possible, see who you vibe with and can share a laugh then go ahead exchanging numbers and meeting outside like pub or invite to home for food something.. not right away but later on.
Even in dating, if you are desperate, it is visible and people will run away even if you guys would have been great together.
Making friends as adults is difficult, that is for sure, but not impossible.
PS - Sometimes Reddit also works. But be careful😅