This is my first post, I am very glad to find this forum. Yes depression and addiction is absolutely related. Nor can you expect to fix one problem and immediately expect to be a flower shining the sun on a spring day. I know that I have changed my brain through chemical use. I also know it will take some time to change it back. Similarly depression and stress change your neuroreceptors. I’d like to post in more detail with some links, but the DT’s have me tonight. This is the best I can do right now.