dude theres nothing to learn. you know it already. what you need is a negative emotional anchor tied to drink driving thatll stop you doing it while youre drunk, and unfortunately in order to have a negative emotional anchor develop, something bad usually has to happen first - like having a bad wreck. or getting caught. if you can, visualize getting caught, or visualize someone being very hurt by your actions.
anyway its good that youre ok, but if i were you id look at this really really seriously. its one thing having a blood alcohol concentration of .06, in which case id be like "not legally clever, but meh who gives a shit" and another being close to blackout threshold, thats just a deathwish