This doesn’t mean be lazy. It means relax, and you’ll probably find that you do better work that way.
Unless someone’s life is directly on the line (maybe it is and I’m wrong), the stakes being high is often just a story we’re telling ourselves.
Also being one of four people that helped a parent company lose a couple million dollars doesn't feel great either.
Or work for a large company where if you screw up it could result in all of your major clients terminating their contracts and the parent corporation deciding to close an entire department resulting in hundreds of people losing their jobs. That's the situation I'm in right now. Thankfully I'm not TOO high on that totem pole that I feel all the stress in the world, and we're probably only delaying the inevitable in the long run, but it is very difficult to relax.
In the military where if you screw up it could result in all of your buddies dying. That was my situation when I was 18.
Listen, it's going to be alright. Breathe. Slow is smooth, smooth is fast. It's going to be okay.
I have a friend who went the other way: worked as a nuclear engineer but eventually got fed up and became a chef (he runs a restaurant in Palo Alto). As he put it to me “when I go home work is over. I don’t have many tasks that span days.”
I have been busy when I worked in a factory and had estops going off, but when the shift is over, Not my problem... Although don't make a mess.
This is a hardware engineers on going struggle.
But for me it was also a type of work where I put in some heavy work and got physically tired and slept well at night without a thought of the job. In my current project I'm in a leading position in some high profile projects and there will be high stakes decision that needs to be taken, there will be drama and opinions and you will need to learn a lot of things in a short time. Even if I would go home at a reasonable time I can still en up googling possible solutions to problems at work in the evening or thinking about how I should reply to an email.
That is mentally taxing in a different way and for me often as equally difficult to cope with as working in a tough physical job all day.