That's a good word for it. What kept me sane? Reading and writing, but no arithmetic! ;) Seriously, I worked on my writing A TON. And read tons of books. (4 notebooks of 100 pages worth of teeny-tiny writing on plots and reaction(s) to said book kept me sane with some of the people I had to deal with day in and day out. i could write a book on that place, but won't as it would be awfully enraging and depressing at once.
See, I knew you were suffering from something because you had mentioned it just before you disappeared (dunno if it's the same thing but you know), so I was really worried something had gone really bad (or worst) with it. I'm so relieved and glad you're alright and back and everything.