Breathe deeply. Take in this day and this moment. It will not be repeated again. Recognize that for each moment and each experience. Even those moments or experiences that seem to be the same are not the same. There is a difference in your thoughts, beliefs, realities. Nothing is to be repeated exactly as it was in the past, present or future.
What does that conjure up for you, when you know that nothing is exactly the same? It should help bring you into the present moment and the enjoyment of what is right here and right now.
When you make decisions, know that nothing is permanent. It is just the moment of this sense of reality. You always have the ability to make another choice as the moments arise. Take time to assess what is right for you in each moment and release the need to criticize or punish yourself for what you have done in the past. If you assess something was not the right way to go, then see if you can stop yourself from that behavior in the future or in the present moment. Break any loops you may feel stuck in.
You must learn to utilize the potentials of the moments to the best of your abilities. That is where learning and growth takes place.