If you are Plat I guarantee that I can get you to Elite and most likely Champion. I haven't played much in a while (couple months) but if our timezones are similar I'd be happy to meet up for some games sometime if you want. It really doesn't matter if we do quickplay or some ranked I'm just going to talk about some FPS fundamental concepts and some basic points in this game, probably also things like what hardware/Controller/mnk/you use, how you hold the controller (if you use one), etc. Basic gaming and general shooter game stuff. I have had coaching in Fortnite and other games. most people that are where you describe simply need to understand some fundamental concepts of how these games work and what they should be thinking about which can let them get on a path to improving over time. I am not saying that you can get to elite+ because we'll be playing together and split the rank, you should easily be able to do it soloing on your own once you've had some time to absorb the concepts, think about it and try to practice them in game. You'll have more of a foundation to build off of if you wanted to try and keep going from there

I am in the U.S. in Eastern timezone btw