Don't take the easy path. Don't rest on your laurels. Be willing to take risks. My plea is that you push yourselves to discover the true potential that lies within you. As you pursue your studies, set your sights high, and don't become discouraged when life's inevitable setbacks occur.
Adversity creeps into everyone's life.
What is highly variable is the way people respond to it. As an undergraduate, I was all set to become an M.D. until I had a terminal bout with organic chemistry and it won. One of my favorite examples of the point I'm making concerns Albert Einstein, arguably the greatest intellect of this century. When Einstein completed his Ph.D., he tried and tried in vain to get a university position. No one would hire him.