Yes, the "forever" thing; that epic commitment--
I've had eight years of consecutive sobriety; I've had many individual years when I drank every moment I could get away with it; I've had months, weeks, days sober over the course of thirty years; forever is a concept that feels unsustainable for me...
So I truly believe in that tired old adage that you read about, and hear repeated constantly: One Day At A Time. I can commit to not drinking today. As soon as my thoughts go futuristic ("but what about..."), my resolve weakens and I start to doubt that I can stay sober. I literally have to force my thinking back to this one day ahead of me (and I do mean force!) Once my mind wanders ahead and doubts creep in about the future, I'm halfway back to drinking already...
Just my personal experience as a chronic relapser; I hope you find it useful, and wish you the best -- Arp