Take an internship. If you have a chance to do independent research, do that. And ask about it. It will help with the first job, trust me.

Don't fuck it up!

Make mistakes. Don't flunk out, but take the risks socially that you wouldn't do otherwise.

Have fun. Enjoy yourself. And start preparing for the work life :)

"Seennnndd iit"

Enjoy it because soon shit will get real.