Been lurking this thread, thought I'd actually enter the conversation.
I've made a ton of progress over the last year and a half after actually getting some lessons and playing/practicing consistently. I had been an on again off again golfer since I first started playing in college 10 years ago. Have been shooting in the +-90 range now for the last few months, with a low round of 88.
I've become much better off the tee, able to hit drives mostly straight to about 250. This alone has made the largest difference, as I'm not losing balls or having 300 in after a skulled tee shot.
Where I need to get better to really lower my scores is on my longer iron shots. Anything above a 7 iron I really struggle to get enough air under it to land soft. Even with shorter irons my ball flight is too low, and I struggle to hold greens, which leads to lots of tough chips after initially hitting the green but rolling off. I really struggle to take a divot, I just can't seem to get a steep enough angle of attack I guess. Not really sure what the issue is, I have begun hitting ball then turf consistently, just not steep enough I guess...