Probation is like a ticking clock, counting down for you from 12 months. The judge has 9 months to play with in determining what to do: revoke the balance and make you serve it, allow you to continue on probation without penalty, and anything in between. There are lots of factors to consider, as well: who your judge and probation officer are, what special conditions the judge imposed upon you at time of sentencing (was no alcohol a condition?), whether your probation officer even knows about the violation. Only a lawyer can help you to examine those factors, AND help you deal with your probation officer. Contact one from avvo in that jurisdiction and see if he/she can help, most give free consultations.
Mr. Kilgo gave you fine advice. Knowlege of the court and you state of compliance in other probation related matters will certainly pay into this case.