Social life. Leisure time. Say goodbye to both of them. Quoting Professor . Chari: “You’ll find a new ability to sleep during times and positions you’ve never dreamed of.” It is not uncommon to start your day at 7:00 . to discover you’re going to bed at 2:00 or 3:00 ., and repeat again. And then, you discover that you’ve been working all day long, no breaks except for food / classes / teaching (this last one, in case you’re TAing). You should be able to program yourself to accept this as a way of life during the first year,.