There comes a point when you have to let go of what was and what will be to handle and enjoy your current state. Not easy I know. The past has already happened. We hold on to memories and even resentment. Then we focus so much on what is coming and how things will be that we don't allow ourselves to deal with the present.
Let it GO! The past. The future. Let it BE! I know I keep reminding myself of it too. Enjoy this moment. Enjoy today.