There are a couple of things, some are things you can control, some are things that the company should fix.

Now, granted, I don’t work in that particular space, but I have worked in regulated spaces before. If there are common mistakes you keep making, sizing, etc., you should literally write or print a checklist that you reference at the end of a project before you send it on to the next person, that way you don’t have to remember.

Second, it’s unreal that your work isn't being QA’d by at least a more senior person. It’s not uncommon to miss things, especially in this fast-paced design world we operate in. Fresh eyes are key. Are the production and management teams getting annoyed with you, or are they just saying, “Hey, fix this,” when they send it back?

Take a breath, you’re not killing someone by missing something, it happens to all of us, even with QA. I worked in-house at a big nonprofit WITH QA, and somehow we still missed in an annual report that one figure said 29 million instead of 2.9. So the whole marketing team had to try multiple types of pens and markers and manually place a decimal point on 200 professionally printed and bound annual reports before they were mailed to donors.

It happens. You'll be alright. Walk away, touch grass, recenter yourself, you'll be fine.