How to use Fortnite on switch?

I'm just desperate and although I've got me a switch and wanted to play bissl Fortnite, only I know me from zero hapert already at the first options. I can neither create my own character, it's always assigned to me randomly and it's not possible to change the name. You can't adjust anything.

Wtf. First, I think you've never played br, because you do not make char in your br

Lol. I also did not say that I ever played it oo

In br you just have to select the modes and dsnn joinen is just a br that means there's nothing to unlock, but if you already get a switch then zock what gescheizes like zelda or mario odyssey.