Undecided major in college?

I'm 21 yrs old and undecided about what I should major in. I started in criminal justice and then moved to paralegal studies. I definitely am very pionate about studying crime and landing a career dealing with criminals or children. But I always second guess about what I should finish college in b/c I get told countless times that a cj degree will get me nowhere, but I dont have such a strong pion about other majors. Im wondering if i should take the risk. Pion or paycheck is the question??? Any advice??