Please realize that Dallas, Fort Worth, and the surrounding suburbs are being flooded with thousands of new grad RNs who are graduating from multiple local nursing schools each semester: TWU, TCU, UTA, El Centro, TCC, TVCC, Hill College, Weatherford College, Southwestern Adventist, NCTC, Navarro College, Grayson, Collin County College, Tarleton State, and many others. All of these nursing programs are churning masses of new nurses into a local job market that cannot absorb them all. There are not enough jobs for every new grad who wants a job.
Since everyone (and their mama) seems to want hospital employment, you might want to look for work outside of a hospital setting in order to land that first job. The hiring practices tend to be more lenient at nursing homes, hospices, home health agencies, clinics, group homes, rehab centers, and psychiatric facilities. Also, pediatric private duty is burgeoning in the area.
If you are really desperate for hospital work, your best bet is to commute to outlying 'country' hospitals such as Wise Regional, Hill Regional, Weatherford Regional, Texoma Medical Center, Trinity Mother Frances, Lake Granbury Medical Center, and so forth. Some people say, "I don't want to commute 1 hour to work each way!" However, the many of the same people who are not willing to make the sacrifice are still sitting at home without a job.
Good luck to you!