I drink between 2-3 litres of plain water a day, plus shakes, teas/coffees etc. If you are struggling with the water, try having it warm, even first thing in the morning as I find it helps with going to the loo for a no2 as well.
I know its hard, but try not to jump on the scales in the beginning (I did and still do now) because it could dishearten you, but as long as you are following lipotrim properly, you should have a great loss on your first week. Once you hit ketosis, your body will be using your stored fats and the weight will just drop off you.
Well done so far and keep up the good work hun.