srellim234:The average of your best 40 games
This.
However............TM is not such a difference, just green speed by memory. But Legend is a different kettle of fish.
Judging by your stats, you are simply way off tiering up. You need to ditch your hybrid and get 2 more good wedges - that will vastly improve your short game.
Then you need to practice, practice and when you think you are getting better, practice some more.
You also need to learn to play all the courses as all courses require a different approach and teaches you course management,
Good luck - I admire your want to tier up, but you really have to work hard to get there.