Training can help. I'm a few months into my "essential worker" situation I didn't ask for but I braced myself and I review my "mind at work" crib sheet. Sometimes it's take a breath. Sometimes is is actually looking at the page. You'd think it would be getting easier but it's not. The risk is real. People are missing from work long-term. Everyone knows someone who's been really sick and in some cases died. Some of the public is getting crazier and we still have to go to work. Moderating emotions are a good thought but you can right things down, review your data and even in a long-term bummer act better than letting it go. However, some people are impossible. I also realized needing to control even if you can't fully do it a few other times in life. Once I took a summer job in a place where war broke out. Once I was on a place with landing gear problems. The mind can't fully do the job but you can manage some important tasks okay.