Thank you Janet - I think this is the realistic advice I needed!
I definitely need more shadowing, because I only have the hours within the psychiatric hospital and methadone clinic; and this was divided among nurses, therapists, and doctors, but I would estimate it at around 50 hours; so this definitely needs to be filled in.
For community service/leadership, I started a martial arts program at an alternative high school for disadvantaged students. I actively taught the program for 3 years, and it is still going on in my absence (lots of obligations this semester, took a break; the school also relocated twice the distance from me). I crowdsourced all the equipment and continually replenish it through donations. I also coached at a martial arts gym for 3 years, and still train; would coaching count as leadership?
For other volunteering, I've created and donated my artwork for LGBTQ and domestic violence auction fundraisers, and worked for fundraisers for substance use clinics, etc; these aren't steady gigs, however. I think I have 5 listed on my CV.
I think pursuing the less expensive 1 year post bacc and using the glide year to shadow, volunteer and work sounds safer, and yet it's difficult to be objective when you are concerned about time!