Learning that adequate recovery time is the key to resilience. I spent most of my life thinking it was normal to be exhausted all the time, so long as I was moving fast and doing all the things. Only in the last few years I have been forced to rest after multiple surgeries and an asthma attack (put on forced bed rest by doctors), and discovered that there's no such thing as pushing though for me. I have to rest enough to recover; I actually have more capacity to breathe and walk at my normal speed after a week of walking slow and a day or two of rest than if I keep pushing myself every day to make progress.