Did exactly the same thing last week. The initial discomfort and disorientation lasted for about 48 hours. Spent some quality time understanding the whole fediverse concept, this week feel like I am “old hand” already. While at it , explore the rest of decentralized services around: Matrix, Mastodon, PeerTube, Pixelfed, Revolt, etc.
Bottom line: you’ll be fine. Once you get a hang of it, fediverse is far, far better than any Reddit, Facebook, Twitter and the rest.