It basically boils down to effective, or ineffective course management and being aware of when and where to allow more room for error..
"You got to know when to hold 'em, know when to fold 'em,
Know when to walk away and know when to run.
You never count your money when you're sittin' at the table.
There'll be time enough for countin' when the dealin's done."
When I play for real I'm always amazed on water holes by duffers that get an old ball out of their bag.
In their mind they are already subconsciously justifying/planning hitting that ball into the water.