You're really young you'll be fine. It'll probably be good for you to have a year off before PT school anyway because it sounds like your undergrad career was pretty stressful. Without my post-bach stuff my stats are worse than yours and I've been admitted to 4 schools so far. I was also told my stats were bad after undergrad and that I had no chance at PT but so far everything has gone really well. You can't listen to other people's crap. It took me 2 years of work but I did it. It sounds like you are perseverant so I have 0 doubt that you'll get your DPT.
I think the most important thing you can do when applying to PT school is to apply to the right ones. Look for schools that care more about who you are as a whole person including your grades but not ONLY your grades. If you want to be in California I'd recommend St. Augustine, Azusa Pacific, and Western University of Health Sciences.
Your GRE is ok. You could raise your verbal, although my friend got into St. Augustine with similar GRE scores. If you have time/money you could consider redoing this.
Ask the schools who rejected you what they think you could improve on.
It's also a great time to redo any classes you got less than a B in.
I'd definitely do some observation hours in some other settings. Even if you're only there for 20 hours or so it shows that you have a wide breadth of experience. So maybe do a couple days in a pediatric, skilled nursing, women's health, or some other setting.
Lastly, make sure you are writing good essays that are concise and make sure that your interview skills are good. I hired a tutor and spent over 30 hours with him working on my essays and interview skills. It's expensive but it's worth it if you get someone good. I also met with my A&P proff from college and she helped me with my interview skills. Professors are a wonderful FREE resource. Just write them a thank you letter after they help you.
You might still get in somewhere since you haven't heard from everyone and you're YOUNG so I wouldn't fret. I'm 24 and I'm just starting this May. I honestly think this time off would be good for you but if you are REALLY worried about it St. Augustine has all year admission (that doesn't really follow their own deadlines) so you could still apply now and they could have you there as early as this summer. Best of luck. I promise you'll be ok.
Thanks for the advise/kind words! I will definitely try to improve on my GRE scores and will be seeking more inpatient experience sometime soon. I am most certainly getting into contact with admission counselors as some of the rejection letters extended an invitation to a formal review of my application. As far as interview processes go, I believe that I have been indirectly prepared for them through my professional experience in the restaurant industry where it was vital for me to carry myself professionally while also being well spoken. I feel as if I have many good things to say and much experience to pull from if an interview opportunity came up, although I think it wouldn't hurt to familiarize myself with common questions/different interview formats. Have you had any interviews in the past? And if so, how were they conducted (eg: time limits, group/individual in terms of interviewers and interviewees, etc)/what types of questions were asked?