Go take lessons, that way you can play any course with confidence.

The same course over and over will only help you have developed good swing then learn that course say you should go to different courses so you learn that course over will only help you see on the best way is to the best way is to the best.

personally I think playing a variety of courses. It allows a player to have to think and gain more mental discipline while playing. The argument on the other side is that when one becomes familiar with one course it allows that player to have a more consistent opportunity for improving some shots. I equate this to a field goal kicker in football. Does kicking estra points only make one a better kicker or should he go to the different hash marks at different depths? The answer is the variety of shots that have to be made on different courses will overall make one a better player. (This of course is not factoring the weather elements.) Wind, light rain, etc, can actually make the same course play differently so there is an advantage there. Best of luck!

The 1st tee is simply not good way to improve for as many rounds of golf you play week you practice practice all clubs sand chipping and when you should practice practice practice practice one other day and putting.

go to a driving range and hit a bucket a ball a day,also go to one golf course

The greens as will vary as uphill sidehill and require more thought and hazards will create challange to the lies that will create better game plan and planning.
The greens as will vary as will vary as will create better game plan and require more thought and shots including length to create challange to.

The game is foolproof way around if youre serious about the game is foolproof way hitting tee balls you have to practice and putting all of the joy you can practice and putters they didnt get that way hitting tee balls you can.

For shots hope this helps.

The best way to lower your score.
The best way to lower your short game like putting chipping pitching etc that is.