Radiology Programs in North Carolina [Long wait time?]

I just realized how Competitive it is. Like there is no guarantee you'll be able to get in.

Take the prerequisite then apply and you'll get accepted next year? If you do well enough. (18 people are accepted every year)

I know the program takes 2 years to graduate but like this. It might take 3 years or even 4. If I don't get in