Every new skill temporarily introduces you to incompetence.

Beginning anything new returns you to a state you may not have visited in years: not knowing, being slow, making basic errors. Success in other areas gives no protection here, and the contrast can be genuinely unpleasant for people who are used to being competent.

Expect that stretch and name it in advance so it does not read as evidence that you cannot do this. Set the expectation at being poor for a defined period. That framing makes the early weeks survivable, and the early weeks are where most new skills are abandoned.