If you think it is a problem, why not stop altogether? Alcohol dependence is progressive, and even though right now you feel "I've got this" you don't know when it will turn on you and you will become unable to stop. It's sneaky and powerful. No one started with three glasses and thought, "Hm, I want to become so dependent that I lose everything."
"First you take a drink, then the drink takes a drink, then the drink takes you."
~F. Scott Fitzgerald
Alcohol can and will take everything from you - including your life. Read around the forums, it is sobering. (pun intended)