To quote my little Allison:
"For those who still have many years ahead for themselves the best thing I can say is to "Smell the Spring". Enjoy the time spent (doing what you are doing), there is no better way to live than to enjoy the position you are in at any moment in time. Do not take it too serious because, there are far more important things ahead. Do not strive for perfection, you will never be satisfied. You will be stuck looking at all the improvements you could be making instead of actually appreciating how much you have accomplished....in the end you need to try your hardest in everything you do, but if failure is to happen, learn to look back and enjoy everything you have done in your life and come back in effort to improve. "
While she wrote this about her high school years, it certainly is applicable to so many things. Try hard, learn, love and have fun. Isn't that what it's all about?