From the philosopher-emperor:

The art of living is more like wrestling than dancing, in so far as it stands ready against the accidental and the unforeseen, and is not apt to fall. –Marcus Aurelius

And there’s this, from the creator of the Magic Kingdom:

All the adversity I’ve had in my life, all my troubles and obstacles, have strengthened me… You may not realize it when it happens, but a kick in the teeth may be the best thing in the world for you. –Walt Disney

Welcome the occasional kick in the teeth. Brace yourself for difficulty and setbacks and heartbreak. And use them to get stronger. Use your obstacles as fuel.