Two biggest regrets in life.
#1 - Not throwing all of my assets into bitcoin when it was $500, which is when I first adopted it. A large amt of my online poker buddies urged me to do this and said it will blow up. I was too scurred. I could have been actually rich with minimal investment. Still was fortunate enough to be in it early on.
#2 - Not selling my properties and putting it all on bitcoin again once it went back down to $3,000.
This graph is a quick find. It is from Sept, BTC is at $13,600 now.