Hi @lbrockmeier - Welcome to Connect! Glad you are here to learn more about MCI. I know that diagnosis must be terribly scary, but it sounds as if you are doing great - and even having some improvement. My husband was diagnosed with MCI a few years ago and he hasn't been as fortunate as you in maintaining his memory and functioning. When he was diagnosed, we attended a 2-week Mayo Clinic program called Healthy Action to Benefit Independence and Thinking (HABIT). It was a lifesaver for us. Here are a couple of links you might want to check out:
https://www.mayoclinic.org/diseases-conditions/mild-cognitive-impairment/symptoms-causes/syc-20354578
https://www.mayo.edu/pmts/mc2800-mc2899/mc2815-10.pdf
You'll see that the 2nd link - the flyer - has phone numbers if you want to contact any of the Mayo locations.

And here is a video about the HABIT program that might be helpful:

Do you have a new neurologist after firing the first one? If so, I would expect that you would have been asked to do a followup exam this year or next. Initially, with my husband, they did a complete neuro-psychological exam that took around 5 hours to make the diagnosis. They asked him to come back for a similar followup exam the next year. If you haven't got a new neurologist, I would suggest finding one you like and then asking the questions that are concerning you - including what kind of followup evaluations they want to do to monitor progression. I also had good luck with getting lots of helpful information from our local Council on Aging (COA). Could you make an appointment at your local COA?