Sounds like what is practised in AA, taking sobriety "just for today"...its easier said than done, though at times its given me a nano second of relief in my early days..I'd start to panic about how I was going to get through this moment? and I'd then say, ok, just for today, and I found the moment moved onto another moment where perhaps and that how I felt does and can change, it gave how I was feeling an objective feel rather than just subjective...as I say, its easier said then done, but it can help in moments of panic...and with time you begin to believe or trust that moments do change and some moments are better than others.