My Supercell ID Hacked, Email Changed, Lost Access to All Accounts

Someone hacked into my Gmail and changed the email linked to my Supercell ID, stealing my account with all my progress in Supercell games like Brawl Stars, Clash Royale, and Clash of Clans. I’ve spent a lot of time and effort on these games, and now my account is gone. I’ve tried everything to recover it but haven’t succeeded. I desperately need help to get my account back. Please assist me in resolving this issue as soon as possible. Your prompt support would be greatly appreciated.