Have you tried going 'inside'? Meditation can teach you to observe your own states as an outsider and affect them, kind of like hooking up a debugger to your own mental 'programs'. Once you notice yourself feeling stressed, firing up the debugger (AKA utilising your mindfulness training) and sorting through the contents of your mind can help you defuse it. Maybe you can even change a variable using your 'debugger' to improve the state of your 'programs' ;)

It also helps you sleep, because the difficulties sleeping are controlled/helped by learning mindfulness.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5337506/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6557693/

https://www.vipassana.com/meditation/mindfulness_in_plain_en...

One way to hack stress is to consider that there's some things that happen that are inherently stressful, and then there's the way we perceive or respond to it that can also add to that stress. I have found meditation and reframing the situation to be powerful tools for that.

With sleep, one might not be able to get more hours or sleep, but it's possible to improve the quality of sleep. For example I recently was not sleeping well, was diagnosed with a sleep apnea, and now using a CPAP machine allows the sleep I do get to be better quality. Other things: journal and meditate before bed to calm the mind, stretch/yoga/qigong to relax the body

> everything there about getting rid of stress and sleep appear to be immutable parts of my career.

There are other careers - problem solved!