I like this series a lot. The self reflection is key to improvement IMO. You seem to be catching some of your mistakes and are working on fixing them which is awesome. Wishing you luck as you continue.
If I may offer some unsolicited advice:
I am not sure if this is a misinterpretation due to language use, but something I noticed is a few of your writeups you will say something like "I lost 'x' because my opponent did 'y', or 'I sent too many engis to location 'x' instead of doing 'y' with them. Where the implication is that 'x' was really bad and not to do it again. This is not always so black and white. The first 3-5 minutes of the game can be really dicey in terms of opening builds on certain maps, and fog of war is a thing even in the later stages. You can't always act on perfect intel and calculated risks are a thing from your opening build to what you do at min 15.
I really don't think you are doing this because your writeups seem like you are giving your gameplay some good thought, but I just wanted to make sure that you are not jumping to conclusions with cause and effect If you made a decision that is good 80% of the time, I want to make sure you are not discounting it because it failed on that 20%, without trying to understand some more context behind things that go wrong at face value. Remember, a good choice will not always yield a good outcome.
The one main piece of advice I want to give you specific from me is for you to ask yourself when you play the following:
What am I doing?
Why am I doing it?
What is my win condition?
I don't have good APM, I have decent micro, I have passable macro, and my late game is garbage. But I know how to find my win condition and exploit it. I highly recommend you try and remember when you analyze (and play) your games to look at the big picture, and not get lost in the weeds with micro/silly mistakes. Find your win condition and commit to it. But try not to get blinded to what is around you as you do so. Its very general advice, but IMO its the most important thing you can do in this game to win. Don't just play on autopilot. Play for a goal, and make it the right one.