Consider the paratrooper. Paratroopers are trained for hours upon hours about what to do and when to do it before they make their first jump. But nothing teaches them more about their commitment than standing at the door of an airplane 3,000 feet in the air and stepping out into nothingness. If they are unprepared the results are fairly predictable. But even if they are fully prepared, the act of jumping out is a belief in the plan and the execution.
You should absolutely take the steps you have planned and be ready to make necessary changes if what you are doing is not achieving the desired results. Don' t jump too quickly by making changes before the plan has the opportunity to succeed, but if after a while if you are not learning by doing, perhaps it is time to change. What you must learn you must learn by doing. Will you do it wrong until you get it right?