Some change comes from inspiration. Most comes from being sick of the old way. Either one works.

Being fed up is a real engine, and it gets no respect because it is unglamorous. Inspiration is pleasant and unreliable; irritation is available, specific, and usually arrives with exact information about what you want to stop. Waiting for the uplifting version means letting the useful energy drain away while nothing changes.

So if something is grating on you right now, spend it today rather than saving it. Make the smallest change the annoyance is pointing at, while it still stings. By next week it will have faded into tolerance again.