Hello,
The biggest mistake is me buying 700 Zclassic coins at 2.3$ and selling them at 3.7$ the day before they pumped to 230$ a piece.
700$ profit in stead of 160000$ profit.
still bothers me to this day.
Well that really hurts. Especially when it was pumped the day after.
I sold two bitcoins for $250 each but that was years ago so I could made more if I saved them but it's been so long ago that I can live with that.