First off, welcome to HW. Secondly, I wanted to suggest that you talk to your doctor about getting a referral to an addictions specialist, if you haven't already done so. Addiction has many components & only a trained specialist could say what part of the depression is related to physical addiction (which maybe could be helped by meds), which part is mental/emotional addiction (which might be helped by a psychologist) and which part may be separate from the addiction entirely (sometimes opioids can cover up an underlying depressive disorder so you might have had the depression for quite some time, but just couldn't feel it b/c of the drugs). An addiction specialist could help you sort out those factors, or any other factors that might be contributing, and come up with a comprehensive treatment plan.
Like Karen, I want to congratulate you on making it this far. That is really quite an accomplishment! It does take a long time to get used to not having the opioids in your system -- some research suggests up to 2 years -- so keep being patient & stay strong in your determination to stay clean. You also might check with your doc about natural help for your symptoms -- exercise, staying hydrated, eating healthy foods, etc. Let us know if there is anything else we can do to support you.