There is a subtle art to not giving a fuck. And though the concept may sound ridiculous and I may sound like an asshole, what I'm talking about here is essentially learning how to focus and prioritize your thoughts effectively—how to pick and choose what matters to you and what does not matter to you based on finely honed personal values. This is incredibly difficult. It takes a lifetime of practice and discipline to achieve. And you will regularly fail. But it is perhaps the most worthy struggle one can undertake in one's life. It is perhaps the only struggle in one's life.