Always look at the coordinates of the base above the quick access panel! It doesn't matter where you go in the game.
If you are reborn in the Upper World, it is still easy to return to Nether because you are trapped in the Nether. This is what the rebirth zone looks like from the outside, and it's easy to spot.
Here, after killing the Desiccant, the final portal appears. You won't get a Nether Star the first time.
Compatibility: Android / IOS / Windows 10 / Xbox One
Download map Nether Only Survival (.mcworld)
[2.6 Mb] downloads: 129