How to get better at fortnite

One word, Practice.

However, other then that i might want to mess with settings a little bit, especially the sensitivity settings. If its too fast or too slow it will handicap you quite bad. I would start with a low sensitivity and then slowly build up until you get your sweet spot. Also, a very underrated tip is to use sound. Instead of listenting to a song in the background for change, try keeping game at max sound. You will get surprised by how useful it actually is . And yeah, that is all that i can give you, just play alot and eventually you will get better.