I've been doing an ok job of following this advice. My problem now is that I do not have a real weakness that sticks out, at least according to the data I've collected via my Arccos golf app. My driving, irons and approach are all between a 13.5 and 14.5 handicap. My putting is at a 10 handicap, so it is only a little better.
Without a clear weakness (per Arccos), I'm really focused on my driving accuracy as I have the club speed (110+mph) to be an excellent driver.
I also feel like I should be able to dial in my distance wedges better than I do today and stop giving up strokes around the green with awful finesse wedge shots (I have some excellent ones, but still struggle with fat and thin contact at times).
So, when I read the above, I feel better about my plan of attack to improve, but I also feel like I've been working hard to get better at golf for some time now (started in full force in August 2018). After all that time, the aesthetics of my game and my knowledge of how to correct errors has increased dramatically, but my scores have not dropped as much as I was hoping (I'm probably 4-5 strokes better than when I started).
I had hoped that harnessing my swing speed would lead to a faster score improvement. However, if I get another 4-5 strokes better over the next year, I'd be happy with that result.
In case anyone was wondering, I decided to add a couple pairs of golf pants (I especially do not have a good cold weather pair) and a travel bag to my Christmas list (no training aids on there as of yet, but I'm hoping these gifts can get me some more time on the course, leading to improvement!)