You have been a busy bee!
As you noted, Clinical programs are notoriously competitive. Continue to gain direct research experience the rest of this year, for sure. However, I would challenge you to start working on your personal statements and such now. You are a non-traditional student, in more ways than age. Since your psychology research experience is going to be limited compared to other applicants coming from undergrad or Masters programs, you need to make that work to your full advantage with an amazing essay that points out your life experiences as a benefit and not a hindrance. What from your experiences as a teacher, as a working professional, and as a crisis responder has motivated and prepared you for a life of research and clinical service? How can you tie it into your research fit?
I was also a non-trad applicant, though not in Clinical. When she offered me the spot, my PI told me she was excited to work with someone who had real life experiences and fully fleshed out passions and motivations, as I had expressed them in my statements. Like you said, not as much time, so we have to pour a lot into a little space, and we can't be wasting time with stuff that's only kind of interesting or kind of related
