Jumping in the deep end

I'm starting on the Tony Ferguson program next week when my order arrives, so this week I will be using up whatever I have in my fridge/cupboards.  There's not much junk food there, just a magnum ice cream and soft drink (that will be hard to give up!).  I think the hardest thing about the program will be giving up coffee.  I can't do without my coffee!!  I feel rotten until I have my first coffee of the day, so that will be a huge challenge.