"stuck" and "what now" are common feelings. You know what I smiled at when I read your post halfalife? That the thought pattern took you to mindfulness that drinking would never be an option and then leading to wanting to crawl into bed and read a book. I get it, the make the world go away kind of day.
When this happens for me I usually find it's because I need to plan something fun. Something to give me focus. Or, sometimes it means that getting into bed with a good book (if possible) is exactly what I should do.
Sometimes we forget just how hard this work is. That allowing these feelings and doing what we need to do is the best thing.
A good book always helped me too