I can relate at almost 3 years in. My depression seems to largely have been a symptom of me drinking a depressant, but the anxiety still lurks in the background.
What works best for me comes from the realm of the cliches — exercise, meditation, self-care, routine, a meeting/connections with sober people ... I've even been contemplating spirituality lately, and not in any sort of paranormal/afterlife/religious way, but from a health perspective. Mental wellness, I guess. Spiritual self-care.
It's odd, at one point diet and exercise and reading on SR were enough, but lately it isn't. So I'm reinforcing things a bit.