I can usually last a year or two. My longest period of employment was almost three years; my shortest, three hours. This last job, I didn't quite make four months. At least I can't blame this one on my being openly bipolar; I just got overwhelmed with all the reading material and the millions of details I was supposed to remember, not to mention the hardship (with a broken toe) of being on my feet for hours at a time. It just wasn't the right job, and I'm actually glad to have been let go.