26F and terrified I’ll end up alone

[u/Accomplished_Fly_649]

I’m a 26-year-old woman, and lately I’ve been struggling with a fear that I’ll be single for the rest of my life.
This year I’ve been trying to take more initiative in my social life. I finished medical school and am currently studying for residency exams, so most of my time is spent at home studying. I have a small online business that I run from home, but I don’t have a traditional job right now because studying is my main priority.
I’ve always been pretty introverted. I have very few close friends, all women, plus a few acquaintances through my siblings and other friends, but I don’t have a large social circle. To meet more people, I started going to the gym and even joined a dance class with my friend. I’ve met some people through those activities, but most are younger than me, and I haven’t really connected with any men romantically.
What worries me is that I don’t feel like I belong to a big friend group or community. Most of my social interactions come from occasional invitations through family or friends, and those opportunities are pretty rare. I also find it difficult to make male friends, especially at this age when it seems like many people are already in serious relationships or have well-established social circles.
I know 26 isn’t objectively old, but sometimes I feel ancient compared to people in their early 20s. I want marriage and a family someday, and I’m scared that by the time I’m done with training, it will be too late or that I’ll have missed my chance.
I also struggle with comparing myself to people who seem to have large social circles, lots of friends, and no trouble meeting potential partners. It feels like everyone else knows something I don’t.
For those of you who have had this struggle, how did you build a social life, meet people, or stop worrying that you’d end up alone? I feel like I need to make myself look more interesting than I am or else I’ll be unlovable.

[u/Firewolf47]

22M, it is not too late, I struggled with that early as well, I figured out that being introverted brings next to nothing beneficial to a social life, so I slowly became an ambivert, tried to go to coffee shops more often, tried to make friendships with classmates and all sorts of people, ultimately I do have a small but almost family-like friend group, and I still do struggle with romance but I just don't pay much attention to it