It was my first relapse that convinced me that I truely had a problem. I was so strong in my conviction to quit, and then, BAM. Gone. I drank. So can will power alone succeed? The Big Book says that we (alcoholics) "are without defense against the first drink."
That is the temptation you must fight, the first drink, at the stage where you still have control: Before the first drink.
All of here know how difficult that is, how powerful the mind is in trying to get us to drink. But resist we must. After a year of being sober I can attest that it can be done.
Good luck.