I was playing on survival in minecraft, when I build a portal to the nether for fun. Just so I don't get killed instantly, I turn on creative mode when I go in and when I arrive, a build a cobble structure around my base. When I decide to venture out to see the nether a little, I go to turn on survival, but the top bar is gone along with the item selection, so now my world is stuck on creative.
I didn't update and tried restarting my world, so does anyone know how? If so, thank you.