Don't worry about the water - 80 oz. is nothing! You need to drink 8-8 oz. glasses per day PLUS another glass for every 25# you need to lose. I usually drink 3 litres per day.

Also, alchohol dehydrates - for every glass of alchohol you need to match it with water. Same with drinking coffee (if you do).

I know that if I don't drink my water I don't lose.

Keep trying!