Is there such thing as right or wrong when it comes to how we use our time? What if you do all the right things and work hard on them, but end up failing or something happens and it is taken away from you anyway? Either we decide to use our time to work hard or to do nothing, we should enjoy it and being serious sucks. Sucks the life out of you.
Working is for the work itself, not for the outcome of where it may or may not lead. Goals are important but, failure to meet them is not necessarily a failure in hindsight and often leads to greater places. Some people are happy doing nothing until they find out where that leads. Inaction is an action.