Things that are good to know your rookie year:
-Don't be afraid to ask for help because as a rookie no one expects you to know everything.
-Don't hide mistakes, because someone's gonna find out anyways and they really won't get mad if it's accidental.
(If you mess up on a part for example, don't throw your messed up part where the excess stock is cause they'll find it.. trust me.
)
-Meet a lot of people at Robotics competitions because you'll get to meet people you can learn a great deal from or just make good friends. (I feel like I've met a lot of people, but I always wonder how many more I could have met if I took the time to more in my Freshman year)
-Take as much as you can from the program, try somethign new every year. For example you can say something like, "This year, I'm going to learn how to do Pneumatics"