In line with this, thinking through how you'll deal with the bad outcome can help you get past them
For example
Me organising an event and only 1 person turning up (this would have stopped me in the past)
- being able to get to know that person better
- not ordering the food until after the event starts
- ending early, or having an alternative plan that works for smaller groups
Me failing a class and having to repeat it next year
- planning what the schedule will look like, or how that would shift your course planning
It doesn't bounce around in your head as much afterwards, because you've "solved" the problem