Support your decisions!
No matter what you decided or decide, once it’s a done deal, support it!
And if you feel that your decision is not fitting anymore, simply change it to a new and better decision. Refrain from looking back, judging, questioning or second guessing your old decision. And then support your new decision.
Here is an example. You decide not to work out today. Support that decision. If you start second guessing it, say or think “I support what I decided earlier!” Then re-evaluate your situation and change it to a better decision. Without judging, or in this case, feeling guilty. And then support your new decision 100%.
That is called “resistance free” deciding!