What did I get myself into?

I signed up for another 7-week course at work, even though work is busy and I'm still in my other course. ?!?!??! All of us will have to take it eventually, but I don't know what possessed me to offer to take it first? Half of yesterday was spent in a workshop, I have today off, and my 7-week course starts tomorrow for half a day. The next week and a half is going to be crazy with payroll coming, plus I have to train a newbie that's starting on Monday. I'm not sure how I'm going to get stuff done for Monday, but it'll be interesting. *sigh*