When I was sixteen my grandfather took me out to dinner and offered two pieces of advice:
Use French condoms
Your great grandfather was an alcoholic, be careful with the booze
I went 0-for-2.
I managed to avoid disaster, mostly.
In my 40s, I came across a much better system for managing alcohol. 1-2-4.
If you limit yourself to
one drink per hour
two drinks per day
four drinks per week
...then you'll avoid most people's problems with alcohol.
I've been using this system and it works great (for a guy that enjoys concrete rules).
I arrived at University at 17 and was soon drinking a lot. Even as a young man, it was clear to me that there were rapidly diminishing rewards per drink (and per sip). For me, nothing tastes as great as the first pull off a bottle of Sierra Nevada. Each sip that follows... a little less great.
Also, by avoiding hitting three drinks, I never get to the point where I don't care:
about what I say
about what I do
about the next drink
about the next day
about what I eat
...so the cascade of alcohol-related errors never gets a chance to start.
1-2-4 means that I have a minimum of three days per week without a drink. I tend to end up with four or five days off. Given my addictive personality, the days without alcohol are more important than avoiding excess on the days with alcohol.
I'm a fatigue addict so there are parallels with exercise.
I don't have the courage to try 1-2-4 with coffee!
If you smoke weed then you can substitute "share a bowl" for "drink." You don't get a second allocation to mix in!
If something happens to me then please teach 1-2-4 to my kids.
I'll leave the bit about the French condoms to your discretion.