Being a Christian Student on the Campus – normal students who enjoy the Lord

When I first hit university, my initial thought was that I also want to be like the serving ones on campus, preaching the gospel, getting into the truth and enjoy the Lord with others 24/7. That was when reality (no pun intended) hit me: How can I be a student and still enjoy the Lord? I cannot just enjoy the Lord because then I fail my exams, and I cannot just study because then I do not enjoy the Lord and I become dry. How do you balance the two?