In relation ton trading too , when you are at the top of your profit and you are not sure or certain of the next market spike or movement, instead you waiting for take profit you can exit the market and go with happiness with what you made already before price crash because most times when ovaction is laudest, some audience might start "criticizing and you get a wipe"
Well, it's a good thing really that at least you know when to make an exit from a day trading after you have made profits than keep on chasing for more profits because you think the market will be more positive, and yet the price suddenly drops, that means you end up losing instead. Set your own happiness and when you think you're already there, claim it. Otherwise, you'll end up frustrated while leaving the market.