Seems like I missed quite the conversation.
Everyone has their vice, and their way of enjoyment. In college, I smoked and vaped weed every, drank beer, Jack, and Captain heavily every weekend, did Salvia (loved it, but it's not a social drug so I always did it alone), did Molly (did nothing for me except make me able to smoke even more weed on it), and smoked herbs like Peppermint and Chamomile.
I still focused on my work, graduated, and I'm doing fine now, mostly because I understand I can't really get away with doing the same after college (I also ditched my vaporizer after I graduated).
I had my fun, and I admit I wasn't always responsible with the above, but I learned how to use each responsibly and not have it affect my life and work so much. I never used any while working, nor did I go to class while affected on it too much (I went to a few viewing sessions for class stoned, but that's it). Still, it's all about being responsible.