First, take a deep breath about the student loan - you can get a payment deferral for up to one year after graduation. Contact your loan servicer(s) ASAP about this.
Second, there are plenty of jobs out there for new grad FNPs. You can also apply for NP residency programs (just google this).
You need to be flexible about location and consider the smaller cities, town, and rural areas. For example, there in California, there are NP jobs going begging in the San Joaquin Valley - they actually pay MORE than the coastal cities and the cost of living is way less.
Third, if you are not getting responses, then your resume needs work. You can research this - plethora of resources on the internet. In addition, there are resume writing services for NPs and it is worth investing in a good resume.
I'm a Western US gal, so I know there is a real shortage of FNPs in the following areas: central and rural California, Nevada, Arizona, central and rural Oregon, New Mexico, Alaska. Be willing to go where other people are not.
Here is a resource to find a Health Professional Shortage Area (HPSA) and these locations may be available for loan repayment programs from the federal or state government.