Hello there~
I've been following your story; I've been in the same boat as you.
I'm not clear on whether you have a deep-end intake/drain. You may not even know yourself yet, or know whether it is clogged or open and working. If there is gunk and stuff down in the deep end, you need to get it out of there. You could have clear-ish water one day, stir that stuff up, and then your water will look worse for a while.
Have you been vacuuming your pool? Simply leaving the vacuum cleaner head down in the deep end is a good way of getting all that water to circulate.
A lot of modern pools have straight vertical sides. My old pool, and perhaps yours, has sloped sides in the deep end. This is something to consider when trying to calculate the volume of your pool. We used to think our pool held a lot more water than it actually does. We thought it was nine feet deep. Now that we're under renovation, we learned that it is actually eight feet deep.
Anyway, you are not the only one to have your pool water clarity fluctuate as you go through the process of cleanup. Mine was two steps forward, one step back, two steps forward....
Hang in there--Pool Owner Patience is indeed something to develop.
Lana