Prior to jumping you should be suffocating in the bedrock.
How to get to the roof of the nether 1 15.
This is the fastest way known in minecraft now condensed in a super fast super easy v.
Want your nether hub on top of the nether.
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Get back from the nether.
Subscribe how to break bedrock.
Find a two block tall space to stand in just under the topmost block of the nether and make sure there is a two block wide or one block wide though it will be more difficult one block tall space in front of your eyes.
Take obsidian and a flint steel with you to make a nether portal in order to return from the nether roof.
Throw your pearl horizontally into this space and jump.