Independent of mental state, I might suggest that the motor skills for a 1911 pattern gun (cocked and locked carry, safety off on the draw, etc.) need a modicum of practice if one transitions from a Glock pattern.
I've seen folks under match pressure forget to take the safety off and stand there dumb founded. Those are neat little 9's but have a different implementation. One needs to establish automaticity on the draw stroke.
I might suggest a bit of dry fire for it goes for a walk as a serious defense pistol and some range time. If one could find a venue that allows draw and fire practice that would be good.