Had a chess lesson from a Master on Chess.com. She said something we should all hear.
The lesson was ...
Play strong, be consistent, be careful, and wait. Her advice was most games are won by patience.
She says that in most games the other player will screw up. They are going to make a mistake. Just wait for it.
When you see the opening. When you see the mistake. That will win the game.
Not heroics, not sacrifices, none of that. Her thing was consistency and patience. Just let them play.
(reminded me of: showing up is 90% of any job)
My interpretation of what she said is: DON'T BE STUPID! Just wait, and an opportunity will present itself.
However, being smart enough to recognize and to exploit the opportunity is all on you.