Lost on how to start gradually moving to Japan

I am 34F, currently based in the Middle East but I feel and know it's the end of an era for me here. My family lives in Japan (PR holders) and I visit them often. I am thinking to already make a move as well. We have talked about this as a family but I would like to know more information from other perspectives. Why: Because their experience and PoV is very different. Even between my parents and siblings, they have different experiences from the start until they have settled.

For me: Would it be better to learn the language first and try to get at least N5, N4 and even up to N3? And then start looking for a job before moving?

I am not a college degree holder but I have 14 years of experience in administrative and corporate-level work. Also willing to take on any job to start with.

What was your experience? What would be the best and worst case scenario?

by Loza_Sed