but at the end of the day, you are left to your own devices to stay sober.
This is true, but I've found that support and encouragement makes staying sober much easier.
I believe if you can sustain a period of sobriety and develop relationships that don't involve alcohol you will 1) find support and 2) have people who do care if you drink or die. But that takes time.
Of course, you have all of us here at SR, and I'm sure many people here do care if you drink or die and are more than willing to offer support. I understand this medium isn't quite the same as face-to-face relationships, but in life we often have to work with the hand we've been dealt. Personally, I've always enjoyed the challenge of attempting to build something with the parts I have available.