Hello Smccarroll, hearing about that water it sounds fine, it will also help keep your levels from getting too low which is very good. As far as the stages of the fast go, you are right it is different for everyone as I have just finished my first 10 day fast and I never experienced stage 3 as described in this post by chrisb1.
I am excited for you and your body to go down this trail as Water Fasting can be a great step to turning your life around. You have to remember though, what you do post fast will really matter the most. You need to make sure you continue on a healthy lifestyle and that is what I'm trying to do also. There are lots of nice and knowledgable people on this forum that I believe would love to hear your progress throughout the fast. Best of luck!