It really is good advice, and you do get more and more energy to do it after you get started. The thing I did was DnD, and I just found people in the area advertising in-person campaigns and went to some. I only wanted to do a social day once every week or two, so I started with that. That didn't last long, though, since after finding the one campaign to be really fun, I ended up joining 2 more and having multiple sessions every week! I wouldn't have had the energy to start with that, but now I've got plenty. It's a bit of a balancing act to both acknowledge the height of the mountain you're about to climb, but also keep in mind that all you need to do right now is take a single step.