I felt exactly like that for longer than I thought I would. It made me really unable to "see the forest for the trees", or to see how much I was gaining by how little really, in the scheme of things, that I was giving up. Whenever I get cloudy and start having romantical thinking about drinking or 'the buzz', I remember exactly where I was, and how much MORE I have now in my life.. The clarity, health, focus, strength, hope.. excitement, ..
But.. that took me a while to get there.