I think you should enjoy this life that you are given on this earth because we really don't know what it is in the afterlife. We can definitely prove that this life is this life here because we wake up every day and do the same thing that we do.
Since the beginning of time, love has been the source of both the highest bliss and the heaviest burdens. At the heart of misery from the days of Adam until today, you will find the love of wrong things. And at the heart of joy, you will find the love of good things. "And the greatest of all good things is God.