Expected outcome

This morning was one of those workouts that doesn't look hard on paper, it was about a half hour short guy of basic body weight movements.  I had expected some struggle to exist when designing it but was not prepared for what I got.  I was burning more on exercises that are usually not as challenging for me, and was breezing through ones I typically struggle with.  What surprised me the most was the 40 MINUTES it took for me to recover.  I was in the floor trying to keep my world from spinning and losing my breakfast.  I have a student who calls this feeling "tequila shots!" I have experienced this feeling before, quite often actually but tend to recover quickly.  I had not expected the recovery to be the most challenging part of this workout, i had not expected to lose 40 minutes of my day to laying on the floor.  While I was lying in the floor trying not to die I started thinking about how everyday we experience events that don't turn out how we had expected. 

What tools do I use to cope with situations that do not turn out how I expected?   

In what areas am I living into expectation?  

Am I avoiding certain tasks, challenges, and experiences because I already think I know how it will turn out, how does this already knowing hold me back?

What would be possible if I let go of knowing the outcome?