I think I've made too many mistakes in this crypto-universe. Perhaps the most painful of all my mistakes was having been invited to invest in bitcoin about six years ago, when cryptocurrencies were not yet well known and their price was very cheap. But unfortunately I did not have enough vision to think it would be profitable, so I simply turned my back on bitcoin. Another of my mistakes was having bought ethers below $5.00, to sell them at $7.00, thinking it was a good profit margin.