In my experience, this is dead on.
In the depths of Winter, I finally learned that within me there lay an invincible summer.Albert Camus
If you get through a hard time, and really conquer it, then you are 10x stronger on the other side.
The key is to actually go through your winter (not around it), own it, and then flip it.
This Al Camus guy seems interesting. Apparently he was a philosopher, author, and journalist (yes!) from French Algeria.
I should probably read some of his books. 🤔