I just want to point y'all to a great post made by Sanya the other day.
Lesson #1: Design for the tech and audience you have now; not what you might have later.
Lesson #2: Be humble enough to really listen to experienced designers (hunt them down if you have to)... including when they're wrong! Whenever someone is wrong about anything, you can at least learn from asking why they believe what they believe.
Lesson #3: Artists can meet deadlines, too. Many deadlines shouldn't be written in stone, but they shouldn't be completely malleable either.