The discipline is mine now, it is not something I have to force anymore. But holding it when I am cold, exhausted, and everything hurts is a different test. There is a voice that says just ease off, and each time I have to decide again to hold the line.
More people experience this than they realize.
You have the discipline, but keeping it through real hardship still tests you.
If this sounds familiar, the Library can help you find the bigger picture.