I'm no expert on anything. Just a guy who's screwed up a lot in life and wants to get clean and sober. I don't know if its the pot or not that's making you anxious. I know campuses can be lonely places, lonely crowds. Pot does mess with the mind though, especially long term. I can't imagine its helping your social skills. Its a retreat into the isolation of intoxication, like all highs or drunks. We're sensitive people, mostly. Hope you weather it. Drinking won't do any good.