My Fortnite account was accessed by a random individual and when I got on one day, all...

My Fortnite account was accessed by a random individual and when I got on one day, all of my aesthetics were different. For the past day or so, whenever I would log on to my Fortnite account, everything would be fine until I get kicked out of my account saying that I logged in somewhere else when I clearly did not. I turned on the double-authenticator but it did not stop this person from getting into my account and I don't want to make a new one just so this would stop. I changed my email to the one where you would be able to contact me at from an old email and before I changed anything else, I noticed the individual replaced my name with their own and I was able to take a picture of this person's name. If there is anything I can do to help you stop this person, let me know because I have his first and last name and that he also changed his language settings to russian. Email me if there is anything you need from me and I will be happy to comply.