I'm just going to assume you mean drinking alone, or at least being alone while drunk, as I tend to not introspect that much when around other people
When it comes to depression in general I found that it helped short-term: when sober I would get hit by a mild panic attack anytime I thought about my past, my future or how I actually feel about it all, but being drunk made it easier to "connect" with myself.
However, what used to be occasional few drinks have turned into a habit and now, after 8 months or so, I find myself being closer to CTB than I ever was before. Of course there are other things at play, but I wonder how much alcohol abuse has contributed to it.