Ski with someone better than you, get someone to rile you up, film it, etc...... these all work (probably in that order).
Many, many years back (like a decade, I'm old) I stuck my first Misty at Momentum. Main motivation; knowing that I was being filmed for video review and the following words of advice from my coach:
'Try again, but with more balls'
The coach with these words of inspiration was Sarah Burke (SIP). It worked.