Which do you focus on?
I have talked with many people who for one reason or another are so fixated on past events in their life that they are unable to look ahead to the future. Be it a tragic event, regret, or grief over losing a loved one, the past consumes their thoughts to the point where they are not living their present life to the fullest.
We must all remember, there are times in life when we must let go of the past, for the sake of the present, to enable us to look to the future.