ACHIEVING GOOD GRADES

The starting point of achievement always begins with desire.
Fix in your mind the exact grades you desire. It is not sufficient merely to say ‘I want to do well.’ Be specific right down to the details.
To reach your goals, you probably need to put in more effort, time or resources. And
to do so requires you to sacrifice some leisure time.
Create a definite plan for carrying out your desire, and begin at once, whether you are ready or not, to put this plan into action.

Of course working hard is the foundation everything.
There is an old Chinese proverb that says: When you hear something, you will forget it. When you see something, you will remember it. But not until you do something, will you understand it.
In short, my answer is a resounding, ‘Yes!’ It does work. Every time it’s applied. And it will work for you ONLY if you take action now.