I am 26 years old and I don't understand how people just make friends.

I am a very introverted person, and the only two friends that I have (and the only two that I have had for as long as I can remember) are people that I met in High School.<br><br>The only reason that we met was because we all sat in the same group on the bus and I still don't know how it came to that. I may be biased cause it was so long ago but the bus was always full and I don't see it happening ever again.<br><br>I still have some other relationships with coworkers and such, but it feels like a lot of work to get to a point where I can go hang out with them outside of work.<br><br>Or maybe I'm just lazy. But it feels exhausting to try to become close with people and I feel like I lose a bit of myself in the process. I have even had the experience of losing a close friend because I couldn't afford to go out with them as much as they wanted to.<br><br>I currently live alone in a 1-bedroom apartment and I feel most comfortable alone. I get uncomfortable in large groups or even with going to social events. But still it feels like something is missing. <br><br>Can someone explain to me how you make friends as an adult.