You'll learn tricks to improve your performance and squeeze more time into the day. But the biggest thing that's worked most for me is staying up later than I normally would prefer. I get a few extra hours for passion projects and still get everything in the day accomplished that I'm required to accomplish.
It's a tough slog. Immensely rewarding, but tough. Prepare yourself for the change in advance so that you don't go through the massive shock I experienced.