Just naming a few time i developed further because of hard times:

Started losing my hair at 18, now with 24 if i don't keep it short it's noticeable, at first i had my self confidence crushed, after surpassing it it actually gave me a boost in self confidence

Started failing in college, now that Im doing fine in college i give another importance to education and studying, i think more about the future and my confidence goes up everytime i pass something

Got my heart broken by a girl the same month i had exams and my grandfather died... i was able to pass everything and deal with the situation if i surpassed that i can surpass almost everything easily