I'm sorry, but saying that an alcoholic has no control over the amount that they drink, and that in no way or means is able to go through life drinking in a moderate fashion like most people, is in no way a generalized statement at all. This is simply a fact that exists with alcoholics. You ask anyone in the field of substance abuse if there is anyway that an alcoholic or addict can follow some plan and be able to drink or use in moderation, and they will flatly and with no exception tell you, that no they can't, it just doesnt work. What you are telling her is bad advise and will seriously hurt someone that is an alcoholic because its exactly the type of thing they want to hear. It's essentially permission for them to drink which for an alcoholic is nothing more than a start of a very very ugly end. You go back and you read posts by others through this thread, and you'll see this is not my opinion, this is what experts in the field know and have found out over time and experience with addicts.
Simply put, moderation for an addict doesnt exist.
As to your situation, and why you might be able to drink in moderation, its likely because you arent an alcoholic at all to begin with. As you yourself probably know, one of the more common symptoms and effects of bi-polar disorder is perioRAB of substance abuse, including alcohol. This doesnt make that person an alcoholic even though they may experience and display symptoms that very closely mimic those of an alcoholic. This means that when you start adding any sort of psychological issues in with drugs and alcohol abuse (not necessarily addiction) you automatically throw out the general guidelines that would apply to an alcoholic, because you're not dealing with an alcoholic, you're dealing with someone with bi-polar disorder who could be an alcoholic, or could be suffering from a manic phase driving them to extreme binge drinking and/or drug abuse. So before anything else you'd have to differentiate between the two, and figure out what is what.
What I'm telling you is directly from what I've learned in taking abnormal psychology in college, talking to individuals suffering from bi-polar disorder (and other psychological issues), as well as my personal experience with people I know and knew who are addicts and alcoholics, including those who have had relapses, which is most of them. These relapses many times arent what you would think they would be for an alcoholic. A lot of people would think that these relapses would be extreme from the start, like someone going and buying a liter of vodka and downing the entire thing in one evening. Sure this happens but it's not always the case. Many times it starts off with someone having a beer, or a glass of wine, and what do ya know, they are perfectly fine, they have that one drink and stop, and its no problem for them. So from that one singular event they figure that everything is okay now, that alcoholism isnt a problem for them any more, and they can drink when they want to and just stop whenever they feel like. So the next time out they have their one one single drink again, and it's still fine. That may go on for a short bit of time, drinking just a little but, apparently in perfect control with absolutely no problems. Eventually though one time out, that perfect control, and that one drink limit are gonna be gone, and that one drink is going to turn into three, after all whats the harm, they're in control. Then after that, because they are in control, those three are gonna turn into seven, then the seven will turn into twelve, and that twelve are gonna turn into so much that they end up losing track they're drinking so much......but they are in control. This is just the type of thing that happens with addicts, and why its so hard for many addicts to stay clean. They figure that as long as they know that they have a problem they'll be able to control it, after all other people do, so why cant they........and right there is the trap they set for themselves and end up falling into face first.
There's a reason its called alcoholism, and not binge drinking....or self medicating, or compulsive drinking, It's because it's something different and far worse, something that is a disease, and if left untreated and allowed to continue will likely lead to any of the following....
Brain Damage - Severe GI Complications - Diseased Liver, Kidney, Pancreas, or Bladder - Heart Damage - Esophageal and Tracheal Damage - Increased Chance of Cancer in all areas - Genetic Damage(DNA) -Fetal Alcohol Syndrome(If Pregnant) - ......and a nuraber of other medical complications including likely death at an early age.