I never felt disappointed in trading. When an action has been decided, whatever the outcome we must accept. Losses or profits are consequences of a trader. A mature analysis by continuing to learn from one's own experience or others, will help us in making decisions we will take.
And now, some altcoin dump because the increased bitcoin price is somehow a disppointing though. However, collecting coins is the best. Truth is sometimes I'm disappointed in trading. In fact I bought it at a lower price. I sell coins that do not have a high profit. But, I always think that I have earned a minimum profit