Enough for your profit is more lesson at cryptocurrency, never trying for investing twice at the same altcoin. Maybe you get profit with one coin but never take buy back again at the same altcoin because price will be dump at the next time.
indeed, in essence, we should not be greedy in the cryptocurrency market, because prices can change in an instant with a distant range. take advantage of the best opportunities
As we observe or read, many advises to invest what we afford to lost. Because being greedy brings us fool, and when we fear that's the time we can make wrong actions.