Mine is the opposite :( I mined about 500 Bitcoin in mid 2010. But I got paranoid about the lack of anonymity, so I sold them, for maybe $0.06 each. So it goes.
No, not really. Stuff happens. And I've been pretty lucky about finding ways to get paid for doing stuff that I might otherwise have done for fun. And mostly as a consultant, with very little structure. Now I just work anonymously for Bitcoin.
But anyway, I would have probably have sold it at the ~$1K peak, and the money would all be gone by now ;)
Congratulations! Outside of the hedonic or material treadmill, I strongly suggest you do something that you honestly enjoy for your community or for a cause you believe in. Lots of studies show that if you "give back" (in a way that you trust makes a real impact), you will lead a more fulfilling life. Also, it's fun to get back to trying to solve problems :D
I'm not rich, I can just pay my rent for a decade and a half before really having to dip into savings.