Choices may enlighten us. They may prove not to be so much successful or may end in chaos sometimes. But it does not mean one should stop trying. They are a way to keep us motivated and energetic and pursue our objectives in a much more practical way.
It is necessary that good mentoring is there. If possible, we should stay away from those who waste time and remain idle. The company of noble and consistent people will go on making us follow their footprints. Another important thing is that one should never give up. One time you may prove unsuccessful, second times too it can be the same, but still keep on trying and imparting meaning to your existence in this world. That way you will be able to make a difference.