raw food

Be welcome here :) Kmg has also useful things to say.
Congrats on staying sober for years! It is so much better to be able to feel and discern the good from the bad in life :)
I'd clean the gunk between fasts; doing cleanses during the fast is too tricky, and you may loose also some much needed during fasting minerals.
The western diet has too many things to promote gunk, glue-y residue and straight stone-forming in the system.
Plan carefully your post-fast diet opt for natural, raw, high-water content fruits, then vegetables after day 3-4.