What do I do to get better in fortnite?
Practice, practice, practice
Even if that doesn't help:
Better play something else.
And besides, there's no trick there. Play and get better.
Practicing something else doesn't help, but give yourself breaks otherwise your concentration will decrease
Lots of play and practice. You can also look for someone to play with you. I also got better because of this and through practice.
I would say, first learn to build properly, the rest is then Aim thing, but in the game building is the most important thing, if you are a PC player, it's best to do this wall of stairs and floor on mouse buttons, if you have a gaming mouse…
But the problem is that far too many people sweat in there, which is why I quit. (Apex Legends should be good too) :)