The 2008 housing bubble and crash altered the trajectory of my dad's life completely. He went from having a thriving roofing business that had lasted since the 60's to having to make sure he eeked every single possible job out of the summer that he could until ten years later when his dementia set in and he couldn't work anymore (except for DoorDash, with my mom), because many people's spending power was permanently lowered and still hasn't recovered. This meant having to take less pay for jobs in some cases.
Other than its effects on my family, all I remember is doubling my retirement contributions, because stock prices were so low I was getting shares for a bargain. I've always lived frugally, so crashes don't hit me as hard as they hit a lot of people.
When things crashed in 2020, I invested heavily in oil stock, having learned that the airline industry suffers tremendously in an economic crash, and with the airline industry being the biggest consumer of fuel, oil stocks can be bought dirt cheap. (I got most of my shares at 90% down from their all time highs in March and April 2020)I sat on those shares for two years and they made me enough money I was able to pay off my student loans and put a sizable down payment on a condo. It wasn't fuck you money, but it was life changing.
I'm glad dad lived long enough to see what I was able to make of myself. He was proud and happy he was able to contribute to the life I've built.