I'm not sure this will help you much, but I fully agree with the focus on water in your ritual. I simply going to go a limb and under the possibility of "it's because I'm a cancer, too" but I have concretely established Water as my "patron element", if you will. The element from where my Self is most greatly empowered, all spiritually, mentally, and even physically.
I have uploaded some literature I hope will assist as you embark upon this difficult journey. You will be in my thoughts. Feel free to contact me if there is anything more I may do.