One of a couple of sprigs I still remember from glancing through Stephen Hawking's book "A Brief History of Time" is the fact that time is a one-way arrow. He even had a big fat arrow to illustrate - one way only. There is no going back. We know that we will inevitably be going forward, and that it will pass faster than we realize, making us wonder where it all went.
So we know that we are on this one-way roller coaster that cannot be stopped, or slowed, except in our memories. But - we can make use of this. We can start a long-term program, knowing that the time will pass. We can wake up every day and say to ourselves "Today I am going to do this or that activity to put myself one day closer to my goal. Because today I decide (again) that I am worth it, that my goal is worth pursuing, and that the time will pass either way, no matter what I do. So it is up to me to decide - to move forward with the inexorable arrow, to be carried by time, and to carry my goal with me, and never waver. I can ride this time train to the end, and carry my goals with me, because I am worth it! One can harness this inevitable motion we are in, on, and a part of.
There is no magic machine to ride backwards. But you can swim downstream and be propelled by the movement of the universe, and take advantage of the same, day by day, hour by hour, with your consistent efforts.
Good luck achieving your goals, and happy holidays to all.