This sounds like a part time gig I did for 4 months last year. It was only on weekends, but it took most of the week to recover from it. Why, because they had you doing 19 classes in two days. 40 min classes followed by a 10 minute break. The first three classes were broken by an hour and a half lunch, however the last 6 went straight through with no extra break time. I know all about the hoarse throat and the feeling of being burnt out, far from an ideal situation. How anyone could cope with this kind of schedule for a year is beyond me. That's just it though, they can't which is why so many people quit after so short a time period. I hate language mills intensely, as silverboy said, the money can be good, but after a while it's just not worth it.