Risk management includes learning to trade well. Learning how to read the charts by doing so means you can calculate whether to go long or short. You will only appear greedy when you don't know when to exit your trade, when you see the chart that the market is almost going to burnout you can calculate and sell and wait again. You will only realize you being greedy when you lose the trade because of greed or simply chasing the pump when its already about to dip.
Not everyone is good enough to manage risks in this market because greed is an inevitable thing when choosing to invest. I have had these thoughts in the past and it is difficult to apply because if the market goes up you will never want to sell the coin you are holding.
When I understood, it was too late because the market is now very difficult to predict and no longer increase as before.