Playing golf without a plan will generally result in a score which reflects this - A high one! The naughty golfer says 'Don't worry, just hit the ball towards the hole.' The good golfer, on the other hand, has a plan for each shot, each hole and each round. Get used to asking yourself continuously - What is the plan? Your plan will vary according to the course, the weather and many other things. This is Golf course management.
If you have a plan for your game, you have a plan for a lower score. Can you imagine a pro golfer half way through a tournament telling you that he or she has no plan?