Good to hear that some practices are supportive like yours and mine. Can I suggest that you find an App that shows graphs over time (I use a spreadsheet and do mine manually) so that you can give graphic pictures that show how you have progressed. The GP has limited time to absorb your input, so it is best to take some effort to simplify the data, and graphs or charts are easier to understand rather than trawling through a load of numbers. If you can use your data to suggest medication changes needed as you progress, then that is extra bonus points and a NICE goal to get to.
I log food, meds dose and timing, weight and bgl readings along with things like HbA1c, formal test results. etc. I used to colour code my hypo events too so it was clear when I was needing a meds change. My spreadsheet works out averages and trends easily, and this helps to condense the info I present, again to save GP time. I also send him a letter with the results in advance of our meeting, so we spend our time discussing the way forward rather than getting bogged down in a presentation of results in detail. I enclose an example showing an Xmas and an Easter and how I recovered from these binges,