You're not alone.
Most students feel that way before attending college, especially when faced with so many choices.
Visit IPFW's Undergraduate Academic Offerings page to see the choices you have. Perhaps the best way is to apply for a particular field that interests you most, take a few classes, and decide after a semester or two. It's not unusual for students to change their major. In fact, it happens all the time. Just go after your first choice and see how it goes.