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???
When I first started my acquaintance with cryptocurrency, I chose to invest money and bought xrp for a long time. Since I bought for at least 1-2 years, I did not take advantage of the growth in January and just continued to wait. Now I would not invest a cent in xrp. I think that coin is a Scam.