It's one thing to make a decision.
In fact, making a decision is somewhat easy.
"I'm going to start working out."
"I am going to stop drinking alcohol."
Decisions like these are made all the time. (Usually when buying bikini's or nursing hangovers.)
But, often, as soon as there's cake or an open bottle of wine, the decision is unmade. Again.
The secret to keeping a decision is to have a collection of thoughts that support it.
Reasons that feel good. Reasons you want to think and keep. Reasons you keep thinking on purpose.
I can create the life I want. I am capable of what I want. I decide what actions I take.
And the second part of the secret is to monitor the thoughts that don't support your decision.
Thoughts like: Just this once. This won't really make a difference. I have no willpower.
It does make a difference.
Your decisions do matter.