As the old saying goes...
Abstinence (e.g. dry drunk) is not drinking and feeling bad about it.
Recovery is not drinking and feeling good about it.
This is what always helped me.
For me, the key to truly being in recovery and not being a dry drunk is a combination of SR, AA, reading about alcoholism, speaking to groups about alcoholism, and helping other alcoholics. This helps me stay connected to my higher power.
It doesn't take me a lot of time each day (some days as little at 15 minutes), but by staying active in my recovery, I have found that it keeps me much happier. (By reading and posting on SR, I am working on my recovery right now.)
Every time I start feeling down, I just ramp up my recovery efforts and my down feelings usually pass.