For me, I try to de-emphasize work and prep myself outside of my job by meditating. Being mindful at work also helps but that can be hard in a chaotic environment.

De-emphasis is key for me. Everywhere we go in society, we're conditioned to think we need to jump through hoops for the boss, work hard to get ahead, make money, be successful, own this, own that, etc. All of that made me paranoid over the years and it eats me up now and then. But these days, I'm thinking just the opposite and becoming more of a minimalist to clear away the clutter.