What were your cortisol levels at the ACTH test (0,30,60)?
I've just done an ACTH test too and want to compare.
Anyhow since you are receiving hydrocortisone I think you should concentrate on the diet. Eat high-protein diet, low glycemic index foods, no skipping meals. Go to sleep at 22:00, try to sleep until 9:00, these are all "regular" recommendations.
Add a good multivitamin. All the other supplements may help but are less important than dietary and lifestyle changes.
Hydrocortisone should provide an immediate life-altering change and you should feel it immediately helping you live a better life an feel better. If it doesn't, you should look for other problems. (It sure helped me, only problem is doctors don't want to prescribe it anymore).