That's definitely, one of the worst life/business advices someone could ever made. There is a huge difference between "doing what makes you good" and "doing what makes you feel good".
For example, eating and exercise; I'm a skinny guy who loves eating a lot because I never get fat and watching indian guys making houses in youtube until I fall sleep the whole damn day. But if I see that doing that ruins my body, mental health and my quality of life; even if I feel more comfortable doing nothin', I move my lazyass to do something to not ruin myself before it's too late.
Stop being an idiot and do what makes your business good before you go bankrupt, you fucking old man.