One way to approach “knocking down” the walls is to take the obstacle or problem and break it down in your mind into easy, manageable steps. With these steps, you can slowly “break down the walls” and eventually you’ll reach the end goal. You can also use something called S.M.A.R.T. goals standing for specific, measurable, attainable, realistic, and timely. This action makes it significantly easier to “knock down the walls”.
Hope this helped or at least given you a good idea of maybe what to write :)