Be forgiving with your past self. Be strict with your present self. Be flexible with your future self. - James Clear

Use the moments of high motivation to make it easier when you have low motivation.

-When you feel like you should exercise, set out your gym clothes and water bottle so it's easier to do the next workout.

-When you feel grateful, buy some Thank You cards so it's easier to write the next Thank You note.

-When you feel the urge to eat healthy, pick a recipe now so you don't have to decide what to make for the next meal.

Use the occasional burst of motivation to make the next habit easier.

You'll feel better once you get started.

The rules:

(1) know precisely what you want,
(2) determine the cost of what it will take to get it,
(3) don't bargain over the price.