I think more organizations in these fields are beginning to transition to "lived experience" as a qualification for related work. Are there local organizations doing work already that resonates with what you'd like to be doing? I wonder if reaching out to those to explore what employment opportunities they may have presently or in the future - for example, if they are applying for a grant it's possible a position of this nature may be able to be written in. I am hesitant to suggest volunteer work as I have mixed feelings about unpaid labor, but that could be an option as well.
There are also some free/low-cost online options. Starr Commonwealth is one that comes to mind; it is more educator/school-oriented but may be of interest to you. They often have specials where cost is reduced or free. One example: https://starr.org/product/trau...d-resilient-schools/ and this one is available for free if you register on their new platform.
Alberta Family Wellness also has a relevant certification you may be interested in: https://www.albertafamilywellness.org/training
If you are interested in speaking or presenting, you could submit proposals to related conference opportunities that share your experience with their audiences.
If you are looking to build skills and capacities through workshops (could be placed on a resume as a hey-I-did-this-and-learned-this), I am planning to transition the free monthly workshops on Rise to Resilience to be less educator/school-specific and more broadly around PACEs topics.