Okay, I got derailed. Combination of too much caffeine, not enough sleep, and not enough calories, and I just crashed two nights in a row – missed days 4 and 5. And then yesterday I was at the Olympics football. I’m not going to call it a no-exercise day, as my biceps got more of a workout than I’d EVER do at home carrying my pre-schooler on the train – but I wasn’t in any state to do P90X when I got home.

Also, having lost NO weight for several days, I gave in and ate more at the weekend – and lost weight. Which tells me I’d probably dropped the calories too low, and run out of energy.

From here, I’m counting this as “lessons learned” and starting again. I’ve had my trial run for most of the workouts, and figured out roughly what weights I should be using, I’ve made a few mistakes and learned how to do it better. So I’ll try again. Maybe this time it’ll work, maybe I’ll figure out a few more mistakes. Doesn’t matter – I’ll keep trying until I get it right.

I’m not going to lie and say I’m as happy as I would be if I’d completed week one, but I’m still feeling motivated and still want to do this. And still think it’s achievable.

So – reset. Day 1 tomorrow! (Again).