Time can be your enemy, or your ally.
You can choose to use this view time to your advantage.
To know that you can’t get it back, and that you’ll never get it again. (Did you ever really ‘have it’ in the first place?)
To see that ‘later’, things will change. There will be a ‘later’, but it will not be exactly what you expect.
With this in mind, you can choose what to do, or what not to do, right now.
I almost titled this post The Power of Now, but, I didn’t want to steal it from Eckhart.