Resilience is an essential character trait when it comes to happiness and success. It is the ability to treat knock-backs and disappointments as feedback, as opportunities to learn, which will result in both happiness and success. However, this can be a difficult mindset to engage in, because it feels more natural to react to knock-backs and disappointments with negativity, to treat them as negative feedback. This is due to the mental habits we have developed, the examples we have witnessed and the general assimilation of the narratives from the culture we have grown up in.
What we need to do is detach the negative from the feedback and disappointments, to try to look at it with a neutral mindset and try to tease out what can be constructive, so that we can move forward more positively. This, as with many things, requires practice. To a large degree we are working against all of the mental habits we have thus far embedded into the pathways of our brains. The good news is that if we repeatedly look for the feedback that we can use to make ourselves better, and as a result our careers and our relationships better, we will build resilience to cope with the disasters that life can sometimes drop on us. When we train our minds in this way we become ready for the tough times in life, but it has to be a daily practice otherwise when the disaster hits we will crumble.