Keep the awareness s/w on repeat this one and share what comes up?
Another nicer way to keep the critical mind at peace is to change the affirmation into a question.
In this case what form of abundance is flowing through me that I am grateful for?
I also recommend keeping gratitude notes on your phone and atleast 1once preferably 2wice a days add some thing to it .. it can be as simple as clean air
Do share what you notice ..