Considering you could have used the money to buy bitcoins and essentially double your money instead, what purchases did you make this year that you are now regretting?
If you knew what you know now, would you have been more frugal with your money?
Bought a video game with bitcoins around May so as you say I could have great profits if I did not purchase that video game that at the end turned out to be not as good as I though it would be.