To remove silicones from your hair, clarifying is a "one step process". One good shampoo with a sulfate shampoo is all you need for a fresh start.
The concept of clarifying/cleansing more than once is when things like proteins build up in the hair--which is different for every Curly Girl. Your Burt's Bees shampoo would be good for an occasional, gentle cleansing of your scalp and roots and even the entire length of your hair if you need it.
Unfortuantely, I think the cleansers you have listed will not be enough to get rid of the dimethicone build-up in your hair. You're going to need a sulfate shampoo, like a cheap bottle of Suave Clarifying Shampoo--any sulfate shampoo really but make sure the shampoo itself has no silicones.
I have an emergency bottle of Suave shampoo in my bathroom--for guests and in case I have a hair product disaster (ie use something with silicones)....so don't think of it as a total loss!
3a/3b; Highly Porous/Fine Hair
Cleanse: GTTTT, Dr. Bronner's Peppermint Soap w/ACV Rinse
Cowash: VO5 Tea Therapies...all of them!
Conditioner/Leave-in: Kiss My Face Whenever Conditioner
Styling: Kiss My Face Mousse and Gel, Herbal Essences SMU Gel, shea butter
DT: Coconut oil and honey
I'd rather wear jewels in my hair than anywhere else~H.Lamarr