Hello and welcome to Psych Central! I can see how this job is not helping your mental issues. But as you say, the best thing is to try to remain calm and rational. The inspectors sound like military members!

Are you seeing a therapist? Look for one with a sliding scale (accepts what the patient can pay) if you don't have one. You need someone to vent to!

Meanwhile, be looking for some other jobs. However, as you say, try to hang in with the one you have until you get another one......

By the way, you can use this thread for some of your venting if you would like!