Always be smart with your investment and know when to withdraw, I think that sometimes we let ourselves be influenced by greed and we do not measure that if we retire at this specific moment we would be making huge profits, we always believe that we can get more, but often not, there are many currencies that reach their ATH and then what they do is normalize, so when we see that the price rises so exponentially we have to analyze the situation well and see if historically there is any chance of a repeat or a further rise.