Try taking a look at this in smaller stages - be it in time, weight, measurements or whatever works for you. You have done brilliantly so far, you just need to remember that it is a way of life - some journeys take the fast motorway route but they are not much fun and the scenery is borning - taking a longer country trail will have twists and turns and the unexpected around each corner - a much more interestign way to go. Be gentle with yourself, of course you will reach your goal if you really want it, focus on that feeling of stepping off the plane in Mexico knowing that you are the one that made the changes happen...........