I tried Wilsons's supps - what's the MOST ACCURATE test for hormone levels - saliva or blood?

I've been taking Wilson's Adrenal Trio = Vit C, Adrenal Stress mixed vits (mainly B's), and the glandulars.

For 3 months i've tried them and am not sure actually that they've helped an awful lot. As stated earlier in the thread i have been extremely fatigued and sleepy and am not sure if the glandulars are to blame for that. I've recently stopped taking those and will see how that affects me.

I'm beginning to wonder if severe adrenal insufficiency is past the point of supplemental help initially and might be worth trying to help out the adrenals with cortisol supps.

As much as i hate to even consider hormone replacements personally- i do think they have their place perhaps in relieving the severely compromised glands, giving them a chance to re-build themselves.

Having removed ALL stress completely and getting ridiculous amounts of sleep - the wilson's programme hasn't perked me up...as expected at least. At one point i was on 4 tabs a day of each.

Regarding testing hormone levels - i wish these specialists would come to an agreement as to whether saliva or serum is the most accurate.
I don't have the funds to do both and am about to launch into getting tests - surely free cortisol is more accurate from saliva rather than protein-bound and free cortisol from serum?

Is it possible for the body to somehow use the bound form of cortisol?
The story above suggests so if a saliva reading showed low cortisol but serum showed high - and improvements felt ONLY when given cortisol lowering medication.

I'm trying to prevent years of mis-guided test result actions!!