i need help nothing is working

someone got into my account and changed my email to theirs and locked it and nobody will help me idk i have ways to prove its mine

Follow the instructions here, Make sure you have access to the original email account the account was on.
https://www.epicgames.com/help/en-US/account-c-202300000001645/account-security-c-202300000001755/how-can-i-recover-access-to-my-epic-games-account-a202300000009739

If you have access to the original email you should be able to start the recovery here
https://www.epicgames.com/id/login/recovery/original-email