Internship: Can I Really Do This?

I'm getting three hours credit this semester for working as an editor on our campus paper. It's a bit complicated for me because I am getting both pay and college credit for the position, BUT I can not count the hours that I am paid toward my internship. I have to book 100 hours by the end of the semester, so I am kind of worried. However, if I need to, I'll just turn in a couple of hours for pay & use th rest for my intership....at least, I hope I can!