My philosophy? Practice, practice, practice and win.
As your golf improves, your concentration will improve with it.
Before I was ever in my teens, I knew exactly what I wanted to be when I grew up. My goal was to be the greatest athlete that ever lived.
The mediocre golfer generally is one who is too lazy to play better.
Luck? Sure. But only after long practice and only with the ability to think under pressure.
I played many sports, but when that golf bug hit me, it was permanent.