Your COMT/VDR taq combo is the least sensitive, so you shouldn't have to worry about mood swings from methylcobalamin; Yasko suggests taking all three types of B12 - hydroxycobalamin, methylcobalamin and adenosylcobalamin.
Detox SNPs
CYP1B1 - can cause estrogen dominance which can cause estrogen related cancers such as breast or cervical cancer in females, and prostate cancer in males. You can eat cruciferous veggies, or take DIM, IC3 (components in cruciferous veggies) to lower estrogen if it's high. Calcium d-glucarate is suggested instead of the DIM or IC3 if you have a CBS mutation.
CYP2C9 - detoxifies Coumadin and sulfonylureas. If you ever needed to take Coumadin, you would likely need a lower dose than normal.
CYP2C19 - detoxifies proton-pump inhibitors (e.g., prilosec®) and many anticonvulsants (e.g., valium®). I believe this is an upregulation. I have this mutation and did better with longer acting versions of drugs going through this pathway - so Dexilant instead of Prilosec, and Clonazepam instead of Xanax.
CYP2D6 - detoxifies 20% of all prescription drugs including tricyclics, MAOIs, SSRIs, opiates, anti-arrhythmics, beta- blockers, Cimetidine, etc. You could have problems tolerating these drugs.
GSTP - a mutation (and you have three!) means you require more glutathione than the average person. You can raise glutathione via a methylation protocol. If you decide to supplement glutathione directly, Ben Lynch suggests taking NAD (form of niacin) with it so that you make the good reduced glutathione instead of the bad oxidized glutathione.
This is probably a big reason as to why you're sick, as your methylation SNPs don't look that bad in the scheme of things.
SOD2 - super oxide dismutase. This affects the mitochondria and thus energy. One person with a SOD2 +/+ mutation reported that a SOD supplement, Biotec Extra Energy Enzymes, got them out of bed. Another person reported this supplement had too much sulfur in it so it wasn't well tolerated. Another option is to supplement with mitochondrial supplements such as carnitine, ribose, Co Q10, NADH, etc. This approach worked better for me.
NAT - N-acetyltransferase - detoxifies petrochemicals. People with NAT problems can be chemically sensitive to chemicals like perfume, gasoline, toluene, xylene i.e., multiple chemical sensitivity. Increased risk for developing lung, colon, bladder, or head & neck cancer.
Don't smoke, and avoid second hand smoke and chemicals. Eat your fruits and veggies, especially cruciferous veggies, to help detoxify. Vitamin B5 (pantithene), can help NAT.
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The general advice for detox SNPs is to eat your fruits and veggies and avoid toxins.