Your best memories were at one time in the future. There is no reason this process cannot be repeated over and over, unless you choose, having passed those times, to try and return to them in memory.
Allow life’s bounty. This is all that is asked of us. It will all be tallied in the end. You will see where you have been, and you will know what you know, and what you have learned along the way.
Look forward. Look backwards only to improve the future by learning from mistakes, and doing better.