Big tip, go to your settings (web browser) and uncheck "show read post". That way you don't need to see the same post everyday because it has a lot of engagements. here is an article that will get you up to speed: https://tech.michaelaltfield.net/2023/06/11/lemmy-migration-find-subreddits-communities/
If you are techy and care for a lot of info about how lemmy works check out this link: https://join-lemmy.org/docs/en/users/01-getting-started.html