That's true don't be greedy especially in trading. Greedy person will lose everything because not every time the is on you so just be fair in everything. In crypto if your greedy it's either your win or lose being greedy will bring you down.
Ya being greedy may make you win big some times but is a long term it will surely gonna hurt you and you end up in loss...so really much better to dont be greedy and take smaller profits that will keep you away from big losses