When things don't go your way, it's an opportunity to test the skill set of mental toughness. Mental toughness embodies a whole bunch of different things such as self belief, self confidence and perseverance. Most people think that these skills are actually character traits but they're not perishable; if you invest in them, they will get strong just like your arms or legs. When you test em, they get stronger. The next time you have one of these days were shitus isn't going your way, remind yourself that it's an opportunities to grow. It's an opportunityto know what the fuck actually made of.