Okay, so the important thing to realize about benzodiazepine and alcohol withdrawal. It is not linear in the same fashion as say, opioid withdrawal. It's notorious for how unpredictable it can be and how the symptoms tend to "wax and wane". Experiences of others and articles I have read indicate that redosing benzodiazepines in the withdrawal phase can prolong it. I don't know how to explain it. It doesn't seem to be dose/time dependent.
When I was coming off a fifth of hard liquor a day habit, there would be mornings that I would wake up and say "Man, I've really turned the corner and I'm feeling better, I'm getting over this!", only to have the symptoms come back in full force later on in that day.
Abstinence is the best idea when dealing with benzodiazepines due to the aforementioned unpredictability of withdrawals. It's not the end of the world that you have slid back slightly, just pick up and move on and be proud of yourself for any little shred of progress you make in getting off of them. It's hard. Benzo's and alcohol are the most nightmarish withdrawals I know of.