Thanks for the positive thoughts, folks!
Torus - about MM: I’m far from an expert, being relatively new to the “system.” But right now, I think I benefit from what I perceive as external support.
When I made self-imposed guidelines, they were based on little more than my best guess at the time, dependant on whatever psychological/emotional factors I was perceiving at the moment. As things changed, it was easy to convince myself that I could change the rules. And, since I was only answering to myself, I could easily forgive any transgressions. Ain’t I a nice guy in that respect? 
MM provides a set of “guidelines.” Such as, start off with 30 days of abstinence, no more than 14 drinks per week, no more than 4 drinks per day, no faster than one drink per 30 minutes, abstain either Friday or Saturday, etc…
Each member decides whether they follow all of them. These guidelines are supposedly based on some body of empirical study, and the experiences of a larger number of people than just me. Moreover, the numerical rules are only part of the system. A vital part of MM involves introspection as to why you drink, what the repercussions are, and where you want to go with your life.
I don’t know what it is about me, but for some reason I find it easier to comply with reasonable rules stated by an external source, than applying my personal viewpoints to every situation. I am too susceptible to identifying exceptions, changed variables, etc.
Moreover, the entire system of drinking moderately appeals to me more than abstaining. I know I will be able to drink. I just have to be responsible in how I do it. For example, Wednesday my daughter graduated from 8th grade. My wife and I shared a beer before the ceremony (her parents were coming over for dinner - we needed SOME numbing.) Then afterwards, I had another as we walked the dog. Last night we had a new concrete driveway poured. We were sitting out front watching it dry (exciting life I lead, huh?) and my wife and her friend cracked a really good pinot noir. I would have loved a glass, but I knew tonight I was going out to dinner and a movie with friends. If I wanted to have a couple tonight, I had to abstain yesterday.
Or if I am working in the yard, I don’t crack my first beer at noon and keep going til I run out. I know I will only allow myself 4. So I wait until I am nearly done, have a couple before dinner, maybe one with dinner, and one after. I am able to drink - I just have to force myself to wait a little while before starting.
I wish I didn’t have to think and plan so much about it - but given my past, I was going to be thinking and planning A LOT if I tried complete abstinence. And in the past I did a lot of planning about when I could get away with drinking as much as I could.
On occasions in recent weeks when I have had my max of 4, I felt I had a pleasant buzz going, yet was able to participate fully in the conversation instead of chasing the buzz until I became a slurring drunk as had been my wont in the past.
I could go on and on, but anyone who is interested, we can do it privately. There is (IMO) a lot of good info at the MM site. And I’ve just started reading what impresses me as a good book called Moderate Drinking by Audrey Kishline. (As I understand it, AK, the founder of MM, unfortunately was unable to maintain moderation, and was responsible for a fatal alcohol-related auto accident. But, I do not believe her personal transgression impugns the entire system.)
Personally, I appreciate a book that has the following language on page one of the foreword:
Drinking irresponsibly (like drinking moderately) involves the intention to do so. There is no force alien to oneself responsible for one’s behavior.
Plus, the MMers have a message board, which gives me a place in addition to the SDMB where I can waste time while at work!