It appears you have a tendency to over-analyze and think too far ahead (no judgment, I've been there too). There's nothing to fear about sobriety. It is not dismissive, it's the truth that many of us have come to know: nothing you can do in recovery is as bad as the damage you continue to inflict while drinking. You can't control and predict everything and you can't worry what may or may not be. Whatever comes your way, you can choose to address with it in the healthiest way possible, including dealing with weight and depression by exercise, balanced diet, proper rest, meditation, etc.