>>36065908Caffeine makes you really good and uber fast. But sometimes you'll make rush decisions and fuck things up.
Weed makes everything fun, even grinding. It also makes you feel like you're making super smart plays but really it's just basic shit.
Alcohol you don't really care and it's hard to focus on details but it's still fun.
I wouldn't do weed, it will ruin your life without you even realizing it. Alcohol might be even worse because you're aware of your own life being torn apart every step of the way. Caffeine will run you down and sap your energy if you don't take breaks from it (say, at least 2 days a week).