I suggest you jump into a fresh vegetables juice fast. Use lots of carrots, greens and some beets daily. Aim for a gallon of liquids daily. You can use herbal teas too.
Smoothies are great too, but nothing equals freshly extracted juices in terms of detoxing/healing.
coffee enemas are great, keep doing them daily, especially during fasting. Taking care of the liver is critical when adressing a cancer issue. You should consider Liver Flushes also.
You need to keep those bowels moving. Don't be affraid to use stimulants like senna. Aim for at least 2 bowel movements a day. You won't need them forever and once the body will be cleansed you will go naturally. Use also psyllium and/or ground flaxseeds.
Start making homemade goat milk kefir to rebalance your gut flora. Candida overgrowth and parasites are very often present in cancer patients. Kefir alone can kill those bad bugs. Start taking raw garlic, curcuma, Black-Walnut ...