Fortnite account hacked?

My Fortnite account was hacked. I received an email from Epic games that someone wanted to change my password. I then changed the password and later received an email in Russian that I had asked to change my email account because I no longer have access to it. Of course, I didn't make this request. I immediately wrote an email to Epic games. When I opened fortnite, I saw someone change my skin and delete all my friends. Since unfortunately no one answers at Epicgames, there may be someone here who can help me to de-register all Fortnite devices. Since I changed the password there, the person should no longer be able to come in.

I can separate the profile from all PS4 accounts, but then I also lose all my purchases, but I don't want that because I have already invested money in the game.

I think Epic has the best experience so they will help you the best.