I ended up for a while just "caring less" about work while still getting my work done and putting all of my heart and soul into my hobbies (mostly Muay Thai and Running). Ironically, I think the time of putting engineering on the back burner has re-ignited my interest in it again. So it's not like you have to "care less" forever.
I've come to realize that I think life is cyclical like that and we need to be able to drive our energy towards new and interesting things, or even our families and the burn out is a signal you need to turn your energy towards something else. Your craft will always be waiting for you on the other side.