This is mostly for my own use but it could help some others as well. Remember that things go awry sometimes. Remember that people have little control over their surroundings. Remember that things can be done later.
With those 3 memories in mind, take a deep breath and continue on relaxing. Life is too short to get fed up with the small stuff. Plus then everyone will think you’re a grumpy pants.
p.s. Off to teach swimming