Good for you for deciding to take this on before something bad happens. Unlike you I did do stupid things when I drank. The consequenses of one of those stupid things is what it took to make me want to quit.
I didn't take any meds when I quit, but I didn't experience any withdrawal symptoms. The only advice I have is at least in the beginning just focus on staying sober 1 day at a time. Just wake up in the morning with the conviction that you will not drink that day.
Good luck!