I had figured out some "price action setups" which were working pretty well and than i got so comfortable trading them that i forgot "Even a perfect setup can turn to opposite side" advice. Market never cease to surprise, it wont let you get comfortable and that is the reason those who make it to the top know's how important learning is everyday even after spending so much time because market is in constant change and you got to adapt. When rules of the game change you got to expect the unexpected, you got understand what working right now might not work as well as it did and it may need a tweak.