So much of golf instruction today is focused on the “good player” or low handicap golfer which is fine but these players are in or near the center circle of the bullseye. The vast majority of what you are told that is essential or critical only applies to these players - not the vast majority in the outer circles.
If you just want to break 100 you don’t have to have the perfect address position, perfect alignment,or the perfect grip. Your margin of error on those things is huge. You are just trying to avoid double bogeys and higher. You accomplish that by learning to play smarter and focusing on scoring instead of ball striking. Learn to miss it the same way every time.
Par for the person just trying to shoot in the 90’s is bogey on every hole. Stop trying to carry bunkers and water in order to reach the green in regulation. Add one more stroke to par on every hole and start feeling more positive about your game. Spend most of your time playing and working on putting, chipping and pitching.
If you want to move into the next ring things change a little. If you want to be consistently in the 80’s you have to have the ability to reach some of the greens in regulation. This means you can’t spray the ball as much and you may have to add a little distance. Experiment with slowing the swing down until you can get solid contact on more shots. Solid shots go much farther. You can hit add distance while you improve accuracy. It’s not about how far you can hit the ball, but how far you can hit it and have some idea where it’s going to end up.
You are going to have to develop a short game so you can start getting the ball up and down in two when you miss the green.
There is no need to spend hours on the range working on tips and buying DVD’s with non-existent secrets. Just work on your consistency. If you tend to slice the ball that is fine, just work on slicing it the same amount every time so you can figure out where to aim your shot.
You will also find that you can get more benefit from playing nine holes and working on you consistency is much better than spending an hour or so on the range.
Learn to enjoy golf more by not constantly trying to perfect your swing or technique and working instead one improving your score. I use to love getting pro-am partners with 18+ handicaps. I could coach them around the course and finish in the money.