I didn't really have friends, but I was very close with my family for a while. I wasn't NEET.
Why did not "betabuxx" in my 20s? And why was I so happy with my life up until 2014/2015? Because up until that point I had very good copes. I mean, they were normal copes, but I was in love with them and I was ready to devote my life to them.
When I graduated I was upset that I didn't have sex or make friends. But this was also around the time I discovered manga and anime. And an Internet community surrounding them. And so I thought "This will be my life. I'll become some kind of notable in the manga and anime community. Like Dov Sherman or Jay Fubler Harvey." Anime and manga spiderwebbed to other related hobbies/copes, like MMORPGs, regular video games, etc. And those had communities that interconnected with other communities. I strived to be essentially a very important anime/manga/video games/MMORPGs/nerd stuff fan.
Until 2014/2015, after many years of grappling with my issues with that stuff, I decided I was done.