No problem!

You can always make a new account on lemmynsfw if you want and I'd bet your username would be open. You'd need to go to lemmynsfw.com and make a brand new account. Just like with the email analogy, trixi6el@Lemmy.World and trixi6el@lemmynsfw.com would be two completely separate and different accounts so keep that in mind. Though, you really don't need to if you don't want to as I doubt it will cause actual problems.

I'm by no means an expert, I've just picked up bits and pieces over time truthfully. The crowd around Lemmy is a bit more techy in general at this stage. Happy to have you added to it and feel free to ask any questions ☺️