You simply hire at least two poets to recite verse simultaneously, and you go where they go. Multi. Verse.

By losing consciousness. Usually our minds keep us anchored to a single layer of the multiverse, even during our dreams (which do allow shifting between worlds) it pulls us back most of the time.

If you have ever been unconscious, this most likely isn’t your original world. Symptoms usually include ‘misremembering’ of historical events or trivia, as well as changes in people’s attitudes towards you after the episode of unconsciousness.

The longer you remain unconscious, the longer your ‘fall’ will be. Small fall will have you waking up in a mostly similar world, but the further you get from your home, the more differences will emerge. To travel into fundamentally different worlds would require longer than one human lifespan (not to mention additional spatial shifting to avoid landing in an environment hostile to life) and thus isn’t currently practical without help from Outside.

cannonball from the edge of the highest mountain I can find.

Consider asking eminem to make them for you