I have plenty of cliche answers like perseverance, work harder, sometimes you need breaks, etc.
“Failure” itself is an elusive term, much like “success.”
I’ve failed morally…and I learned what my toughest temptations and how best to avoid them. I’ve learned I’m not perfect and I am capable of grievous sin if not checked.
I’ve had ministries and initiatives fail but they always taught me better ways to do it.
Ultimately, humility is failure’s lesson to me.