Some people like DHEA, I took it for for over 2 years and it did nothing for me. When you say your cortisol rages what exactly do you mean ?Be aware that copper toxicity will destroy connective tissue and can cause massive collagen loss.
Are you getting stimulated when you take B5 ? If so the dose is too high and it is also an indication that your adrenals are in very poor shape.
Sometimes it is best to start with just a good B complex. The idea is to build the adrenals up. If they start getting stimulated you moving to fast with a supplement.
Mineral balancing is a simple concept. In your instance it appears your copper is way out of balance. The only option you have besides chelation is to provide your body with the correct minerals to bring it back into balance. Unless I am missing something.