I got in this cycle, but I made a backup plan earlier this year when I hadn't gotten into anywhere yet. It went something like this:
1) Move home and get a job anywhere (rehab aid, vet tech since my degree's in animal science, McDonalds, etc.)
2) Get more varied observation hours. SNF and subacute are the 2 major settings I haven't seen. I live in a rural area, though, so those are difficult to find.
3) Take classes. I wouldn't need to raise my GPA (it's a 3.9+), but I used AP credit for my physics prereq which severely limited my school choices. I would've also considered taking medical terminology or kinesiology.
4) Practice interviewing. I did some practice interviews, but they're not my strongest suit.
Don't worry about a backup plan now. The application doesn't open for over a month, so you have time to add more variety to your observation hours or retake the GRE to offset lower stats. Heck, I added over 100 hours in a rural inpatient hospital and outpatient clinic in the 2 months before I applied. Be sure to put your best foot forward in writing your essays and selecting your references. You can do it! It's so stressful, but completely worth it.