You can’t be a serious person and smoke weed or drink alcohol.
Stay focused
Alcohol, weed, drugs, etc. are extremely distracting. Even if you only have a drink or two at night, it’s going to drastically affect your performance the next day. My simple heuristic is to completely avoid any alcohol consumption. Just abstain from it all and remain focused.
It’s boring anyway
Using these external means for entertainment is foolish at best. It’s extremely destructive and unhealthy and not even fun. Plus, most alcohol just tastes gross. If you wind up at a bar or a party, just stick to sparkling water. It’s a shame that most modern people socialize over alcohol these days.
Be a serious human
I honestly don’t trust anybody who drinks or smokes at this point. I know that you become a completely different person under the influence of these things and because of that, I find you untrustworthy. If you want me to take you as a serious person, abstain from drugs and alcohol, and stay sober.