Want to drink one last time before inpatient

Please no judgement, it’s a calculated risk I’m willing to take, I just had a question in case anyone has experienced it.

I’ve made it 9 days without drinking, and will be entering a program next week.

After that I’m done. (I KNOW THIS GROUP ISNT ABOUT QUITTING GIVE ME A MOMENT)

I was thinking I have one last night of fun. Just lightly, not going too far. I was wondering if anyone knows if it’ll basically restart my withdrawal symptoms if I have a couple of drinks? Will I be back at square one for just a few shots?

Or is it typical to have a last hurrah?