Im terrible at drinking my water.. when we go out, Ive been trying to order water more often, mainly for budget reasons..and secondly for health (sad isnt it?) instead of my usual Diet Coke.. (which I am incredibly addicted to and am not going to quit drinking, btw)

My question is, does Diet Coke and unsweetened Iced Tea count for anything?? I mean.. iced tea and Diet Coke are just flavors mixed with water or soda water... I mean, water IS the main ingredient in these drinks.. so if I drink iced tea all day long, and no water, will I be okay?? I need my caffeine!!

Thanks in advance..