I’ve actually written quite a lot on all three of those dimensions. You can find them all on Medium, and if you don’t have full access I’ll send you drafts. In a nutshell, the Earth is now in the 5th dimension. Most people haven’t caught up yet. The 4th dimension is different, as it’s not a place to live, but a kind of storage place for thoughts and negative energies. You have to release all your “baggage” there in order to go to the fifth dimension ( there are articles on how to do that, too).

Let me know if you’d like more information, and thanks for the comment.

Blessings to you.