While trading we have to follow few rules and without following those rules there is no way to be a successful one except a successful by chance. There are lots of rules of them greedy plays a vital role. While trading never be greedy. If you become greedy while trading then you can be assured that there is 90% possibility to be a lessor.
I agree with you. Having rules is vital when you are trading and without it you will be out of the game in a jiffy. As I learned when I was new to trading rules will save you, always set reachable target price and a reasonable target loss. Always follow that target. It does not matter if the coin continue to rise because sometimes waiting for a higher price is deadly. Sometimes instead of going up it will goes down. As my mentor told me a gain is a gain, Lock in your profits.
Yeah making plans is important, I always make the first price target, second, and third. you're right sometimes waiting too long when the price goes up is deadly and probably will hurt you. making the target price you want to sell, will keep you out of greed. but you should make a reasonable price target and do not stick to the target price only, still do according to market conditions