How do I get back down from the nether roof (Minecraft PS4)?

I managed to get to the "roof" without any problems but don't know how to get away. Does anyone have an answer?

Normally you make a nether portal to get back to the overworld…

Create a new Nether Portal with which you can then enter the Overworld. If you have memorized the coordinates of the old portal in the Nether, and go to this place on the ceiling, you can connect the portal there with the portal in the overworld. Then you can always go back to the nether blanket. Problem now is when you have no lighter and no obsidian. But if you are back in the overworld and no longer want a portal on the ceiling, you can light TNT in the Nether, back through the portal. Then the portal in the nether will be destroyed and you can create a new one in the normal nether.

And without a portal, I probably won't get out of there that easily?

Not that I know. The only thing I can think of is to somehow kill yourself. For example, if you have lava with you or something. I don't know of any other option right now, otherwise you'll have to take a look on Youtube to see if you can find anything.

All right thanks ^^

If you don't have anything valuable with you then you just kill yourself (starvation)

And even if you do, you kill yourself, take obsidian and a lighter with you and go back to the Nether blanket as quickly as possible to collect the stuff. There's nothing else left to do.

Quite simply bro will get your items away. Kill yourself and go back there with obsidian and lighter. If you can do that in 5 minutes, you still have everything and you're gone.