One of the most common pieces of advice that you will ever hear is;
“Don’t sweat the small stuff!”
I am in my third week of a new job and the stress is often quite high. The stress is higher because it is actually a new career since it is quite different than my previous jobs and I entered the company at a high level. Expectations (both mine and the owner’s) are rather high. The break in period lasted about three hours. I still have not finished reading the company manual and started doing payroll before I got my first paycheck.