Personal game mode stuck in creative

Hi. So I put the game mode of my server into creative, built some stuff and then changed it back to survival. Everyone who joins is in survival except from me. The set game mode is in survival but my personal game mode is creative and I’m unable to change it. Pls help!!!!!

Quote from Roman

Type /gamemode survival [username] into the console

When I do this it says “you do not have permission to use this command”