Truth is not something you can simply decide applies in a situation. No amount of affirmation or getting on your knees will change that.
Truth of any situation needs to be realised and it is the realisation which we can truly call Prayer.
Realisation happens when we contemplate or meditate to allow that realisation to take control of us regarding a specific scenario. Truth is not defined as a local truth, it is defined as a universal Truth about who we really are.