With routines, you don’t want your threshold for “success” to be checking 100% of the boxes. Look for 3/5 wins or 2/5 wins. Otherwise, the human inclination is self-sabotage with “Well, I miss A or B, so I failed today,” or “Now today is going to be harder” and it becomes a self-fulfilling prophecy.
Rehearsing the worst case scenarios or negative visualization is a very powerful tool, which paradoxically allows you to become more relaxed and therefore, more response-able, i.e., able to chose your response if you get thrown a curveball question or if you flub and make a mistake in the middle of a live broadcast.