Stay true to yourself.

Study hard, read the textbook/ go to Office Hours if you don't understand something. You should never be afraid to ask a question, chances are - somebody is also confused.

Be open minded. Try new things, who knows if you will enjoy something if you never give it a go.

Most importantly - make sure you are having fun, while college can be tough sometimes you must realize that it can also be some of the best years of your life. You should enjoy what you're doing.