December 2017 during the high of highs, I made a huge mistake, I allowed greed and fomo, ignored my gut and bought into NXT because I was chasing Ignis airdrop. The coin has since tanked and I still have not received the airdrop. Nxt is probably 80/90 down.
What is your biggest cryptocurrency mistake???
We have the same experienced, it's really important to follow the development or update of the coin you've just invested in, so you'll know when will you exit or sell, if you fail to do that you will find your coins with no value and you have no way to sell it a price you want.