Oh, how I've fallen hard in that trap many, many times.
This is what works for me now (keeping in mind I'm in very, very early sobriety myself):
I am not going to drink TODAY.
Maybe I will tomorrow. Maybe I won't. I'm not going to worry about it.
Today I am going to stay sober and that is all there is to it.
I don't ever think about quitting the sauce forever. If I do that, it will seem so impossible that I'll think I might as well drink. And I will. So I don't bother myself with it.
Today, no matter what happens, I'm going to remain sober.
Congrats on the 9 months! That's awesome ... you are an inspiration!