Although it is extremely helpful, I consider formal education for game development to simply be a starting point. It's a spark to light a fire and it's up to you to make it grow and burn brightly. Teachers and textbooks give you a guideline to follow so you can learn how everything works. Once you learn all that you need to put the pieces together in order to form your own ideas and even take things a step beyond and continue to learn about your development environment of choice outside of class. Maybe take the time to listen to other developers and learn from the experience of others. Just don''t ever assume that because you have a degree that you can make anything you want or easily accomplish any task that comes your way. The best way to master anything is through practice.