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???
In 2012 I sold my 2 BTC for dollars, as was planning to finish the job with cryptocurrency. At the moment, I think this is my greatest mistake. Just had to leave them in the wallet but I was stupid and the prospect of bitcoin I did not seem as real.