No need to stop using LW. I’ve got three accounts on different instances plus kbin. Oh, and I fifth on if you count my nsfw login. Partitioning your online life is nbd, really. And the fediverse makes it easy.
Sopuli was my original instance from before I knew what the Fediverse was but however they have their server set federated community discovery has been broken from the beginning. World is my reddit migration account and I moderate a couple of communities there. I really like some of the communities on Beehaw, and they defederated pretty quickly from just about anyone with more than a few users, so I got an account there. Kbin didn't seem to work as well cross-federation so...number 4. And I use a different handle for NSFW. It would be nice to have an app for aggregating usernames across instances, but I much of my browsing from desktop so it's really nbd.