I'm still trying to wrap around my mind about how this federated universe works. Like i know that I could access the content of this instance (is this the correct name?) from Mastodon and I did subcribe to a few lemmy instances from there but didn't manage to read any posts. Plus the thing that in Lemmy i use an account from another instance and I can read and post on everything but not by accessing it directly. It's kind of counfusing and I think this will be the greatest break to it's diffusion. Otherwise definitely better than Twitter/Reddit for sure.

Tried a couple of times to "get into it" with YouTube tutorial and so on but never managed to succeed

I gave up trying 10 years ago