lol, Jules, i felt exactly the same!! I first heard about LT from a friend about 5/6 weeks before i started it.
To be honest I was sceptical - not of its effectiveness, but of my own willpower! I really didn't think I'd last beyond week 2!
13 weeks on and I've dropped almost 3 dress sizes, over 4 stone, haven't strayed from LT at all, have done wedding, numerous boozy nights out, meals in restaurants and totally avoided the countless hotel breakfasts week in week out, in the course of my job.
One thing I did early on was write down a few pages of goals, so almost every week there is something to tick off and commemorate with a date. Every half stone, every smaller sized item of clothing, getting under 100kg, getting to halfway etc etc.
I just feel really good!