Hi,
one thing You should do is P&B shakes, that is psyllium and bentonite.
Also get everything out from time to time with Epsom Salt or castor oil.
The DE is great because it doesn't work on a chemical level, so the parasites can not get used to it. Keep it up and don't worry so much about what people write, it's the internet after all.
You should rotate the herbs and try different things. Black-Walnut has never done anything for me and I've taken up to 1oz per day. Try some essential oils, they are great. Check out Swansons, they have many herbs really cheap.