Most of us feel pressure to keep going when things feel hard. In fact, we sometimes think that the harder something is to do, the longer we should stick with it. We’ve been told things like, “Quitters never win,” and “Never ever give up!”Certainly pushing yourself even when things get hard can build character. Grit, perseverance, and hardiness are all key components of mental strength.But does quitting a job you hate mean you weren’t strong enough to hack it? On today’s Friday Fix, I share how to know when you should quit and when you should keep going.