What keeps me from drinking more is the reminder that there are still plently of alcohol that hasnt been digested and the fact that I HATE being drunk. I enjoy the buzz so when I get it, I stop drinking and just drink water for the rest of the night.
I do that when I go out...drink two good sized drinks and then stop. I save a hell of a lot of money that way. I went out last Fri night and I had one drink but wasnt really in the mood for alcholic beverages so I ordered diet coke...turned out that they were free. Yay..so I had soda for the rest of the evening.
I used to have the same problem as you did when I was in high school and in y 20s but I realized that when I get so drunk, I dont create memories. I dont like being totally out of control of myself. Too scary for me.
My dad had that problem which is why he is in AA.