I see stuff about how you're not supposed to give 100% to your job, which I definitely agree with (try not to burn out!) so I thought I would give some tips for how to do that from someone who works what most people would consider a moderately high-pressure corporate job:
Figure out how to project plan yourself. In some jobs you can do this, in some jobs you can't, but if you have control over your own tasking or deadlines to any degree, use it. Figure out what needs to get done to get from here to there, figure out approximately how long it will take you to do each things, and then proactively tell whoever you need to tell what your timeline is. That way you are (often) able to build in far more extra time than someone else would give you.
Take breaks. Take breaks. Take breaks.
If you have flexibility in your hours, use them. I sometimes work best really late at night so I will take way more breaks in the middle of the day and then finish my work when it works for my brain.
Stick to the deadlines you set, if you can. This works in both directions--it's easier not to have to sprint through things if work doesn't pile up from missed deadlines, but also don't feel the need to send stuff in early. If you said you would finish something by 4:30, don't feel like you need to send it in by 3 just because you are capable of finishing it by then.
Learn how to manage up. Managers will generally give you so much more leeway and look over your shoulder so much less if you tell them when you'll get them things or that you're going to be late finishing something than if they have to keep asking. When I manage people I would 100% rather someone give me something five hours late but tell me when they'll give it to me than 1 hour late but make me badger them for it.
Learn what is a sprint and what is a marathon. At least in some professions, some things will need to be done quickly. For a while I did high visibility same-day reporting five or six times a month, where we had to pull the data at 9am and send the report out that day. There's no way to do that anything but quickly. But if there are weeks or months before something is due, you have time! Use the breathing room you have.
Figure out what you have to care about. Some things in jobs are performative. Some things really matter. Learn what you can skim or give very little effort to and what you can't.
Work smarter not harder. If there is an easier way to do something, do it the easier way. Sometimes it's also worth doing some front-end work to make a whole lot of later work way easier.
Don't screw over your coworkers. If you are a dependency in someone else's work where you doing your job really slowly or poorly means they have to pick up your slack and do extra work, try to do your job well enough to not give them extra work.
A lot of the posts that I see boil down to "don't give more effort than you need to to your capitalist overlords" which, sure. But people also need to make money and not be fired, and things in society need to actually happen, which requires people doing them.
Don't give 100% to your job. Try not to burn out. Figure out what works for you, while also keeping your employment and ability to make money safe.
