An impressive story i must say. However; i know three guys that purchased a particular coin at the ICO; when this coin got to the exchange, the value quadrupled seriously bullish....
Two of the guys sold off their coins to fiat and made a hell lot of cash; while the other one is still waiting for the coin to come back to the value he bought the coin.

Greed can only be dealt with if you have a strategy put in place. For me, i keep 60% of the coin and sell off fourty percent once i notices that a coin has mooned. In that way, i don't wallow in regrets and self pity.

You too can give that a trial.