Idk anything about your life right now, so if you've heard the following a thousand times already, I'm sorry.
I've been in a similar situation roughly 2 years ago, although I've had a good amount of old friendships, but also too tired to meet any of them. Work and household was just too much.
So I stopped working with the explicit goal to deal with my fucked mental health. (If you can't do that cause your country doesn't help people who need help I'm doubly sorry) It wasn't easy, but it did get better, a lot better. Just took forever(3yrs).
It really helped to find groups with similar problems and/or interests. Can be a huge step obviously but ever since then I am struggling to decide who to spend time with. And queer safe spaces tend to attract really friendly people.
At any rate, I needed a lot of help, coming from a lot of sources. It feels like you are in a similar situation, so you probably need lots of help too. Reach out and ask for it nobody can help you if they don't know you need and want it.
Good luck on your journey, please continue, it'll be worth it.
The advice about sticking to an extroverted person is probably what saved me from sliding into Kiaras situation too badly.
Helped lots with networking and learning social skills. It also helped a lot that they were a really patient and accepting person, so me being me didn't "scare" them off.