I'm newish to the whole fediverse thing myself. I've made 3 lemmy accounts on different instances mainly due to lemmy.world being a bit unstable and Lasim making it easy to migrate communitya.
Also made a kbin, mastodon and because I read a lot a bookwyrm account.
Nope I don't think so but the 3 lemmy accounts might be overkill I'll maybe delete my original lemmy.world one. I think 2 are needed in case an instance has issues.