Your actions must be meaningful. Every your step must have a purpose. Without a purpose we lose sanity, lose the track. Happiness is defined by the sense of purpose.
Plan your steps, but be ready for obstacles and surprises. Picture your movements. From the outside it might seem that you have no plan, but everything still goes brilliant. Good plan seems so natural so others might think you’re improvising. Bad plan will reveal itself. Bad planning breaks your confidence. Good plan will save you even under surprising curcumstances.