Hi. I've been teaching Mathematics for fifteen years now and am completely fed up with teaching the same old stuff every year. I'm beginning to think that instead of fifteen years experience I have one year experience doing the same thing fifteen times. The problem is I've been thinking this for about five years now but have no idea what to do if I leave. I'm already 40 and I know career changing at his late stage is a hard slog if it is at all possible. Any ideas?