Real Talk: You need to find what works for you to get in the zone and feel comfortable with the fear, this is different for everyone.
For me, It's important that I feel well prepared, rested, and relaxed, and even better with a good group skiing at a similar skill level. Feeling rushed or unprepared is what makes me bail out 9 times out of 10. Music, people watching, cameras being on, those don't really bother or help me either way.
You are probably different, what hurts or helps me may have no effect on you or vice versa. You just gotta take the time to learn how to manage what gets you in the ideal mental state to perform, thats when you will ski your best