You are 1 day ahead of me, I'm on day 1 I also had great success last time, and was also told it is harder 2nd time!
I'm starting off on 810 though, but still so determined! Keep it up, we can do it!!
There's enough of us serial restarters around here to tell you that it's perfectly possible to do it a second... and a third.. and a fourth time...
I've lost count, frankly - but my failure to keep going has nothing to do with Cambridge and everything to do with my head not being in the right place, because I couldn't get going with any other diet either.
Keep your eye on the prize (you in Tenerife in July in a lovely bikini ) and you'll be fine!