Do not trade with everything you have,your egg can not be save in one basket, I have lost but I have gained more in trading with the help of research and mentorship programs.
Bitcoin maxis will tell you it doesn't apply to Bitcoin. In fact, if anything, that all eggs should be saved in one Bitcoin basket by buying and hodling only Bitcoin.
In a related development, saying traders shouldn't be greedy is like saying humans shouldn't be humans. Greed is the nature of humans. What makes greed an issue is how we control or allow it control us. As a trader, you will want to get more off the market whenever an opportunity presents itself, factoring in the fact that the market is merciless when dealing with traders. It's not a bad thing by my books, though, to get back at the market if we can. Nevertheless, one has to be careful in doing that so as not to get
very greedy. Like we were taught in the drama Macbeth that being ambitious isn't a bad thing but that being vaulting ambitious is a problem.