I think I got really lucky in the fact that I was introduced to it by some friends who were much more familiar with the culture and also had several worlds to show me right away. The first few times, I definitely was only logging in during group events with friends, then eventually I started branching out and visiting other worlds (setting them to friends+) just to catalogue them and add them to my favourites. I started googling for ways to find parties, raves, whatever, and came across a big list of discord servers for groups hosting parties. I joined a few of those and now I'm usually in vrchat a couple times a week dancing at events, on top of whatever else is going on with my friends.