Looking for advice on cyberpunk novellas

Over the years, I've had several fits and starts of cyberpunk novels.

I have 7 of these that are "done" but not finalized, edited etc.

They are all ~17-25K words, so would be published as novellas.

I'm looking for advice from others on how best to wrangle this, and have a few questions.

1. Do I go ahead and self-publish if something is "good enough" and just start getting them out the door?

2. Do I hire a professional editor or do I say what I have meets the bar of "good enough"? (and if you do have a good cyberpunk editor, I'd love an intro).

3. What about covers? I have a few very attractive AI generated covers -- and the latest edition of Midjourney also has been able to generate very precise and high-res covers based on the KDP cover template and dimensions. Are there any gotchas with using these?

4. What about sequencing? Do I go ahead and try to get them out one book a month, or do I release them in batches? They are all standalone books.

5. Any other considerations that I should know when publishing novellas of this size?