I'm assuming you are choosing UNT for proximity? If you are not a Texas resident it may be tough. I would advise you obviously do ED, keep your grades up, and start preparing your letters of recommendation. If your medical trip is not pharmacy related, I would focus more on discussing your retail working experience in your interview. I would work on your pharmacy work experience, and become a pharm tech if you are not one already. All in all, if your GPA stays above a 3.5 and you gain more pharmacy experience AND do ED, you should be fine.