The best way to keep your cool when faced with a pressure situation on the golf course is to prepare and practice for it.
Add pressure to your practice by setting targets and challenges for yourself during the round.
Set consequences if you do not hit the target, set rewards for if you do.
WATCH: PUTTING WITH PURPOSE DRILL
A simple way to do this is on the practice putting green, highlighted perfectly by Phil Mickelson's putting circle drill in the image above.
Mickelson forces himself to hole out every three-foot putt in a circle around the hole. In fact he aims to hole 100 in a row before moving on to his next area of practice. If he misses one, he has to start all over again!
But for you amateurs out there, just focus on holing your first 10. That's enough pressure, and will stand you in good stead when you're over that must-make three footer for the win at 18.