Camming was my main source of income from December of last year to this past Sunday, so I went in with an 8 month gap in my resume. It's not that long, but my new job is in my preferred field, and is something that I, (like you) had prior experience doing. I don't think my employer cared that my experience was further down my page, among unrelated jobs up to the past 8 (seemingly unemployed) months.
I was extremely aware of how guarded I felt making introductory inquiries with actual co-workers. I just direct focus to my skill, work ethic, and who I am, instead of how I have money in my bank account. This is the same attitude I try to have in my room and I'm still camming a little bit, so I haven't quite left for good. It's nice to gain "socially acceptable" work experience, while chucking a tiny bit at the tax overlords for the xxx independent contractor 18+ money. Camming completely improved my quality of life, so I want to be proud, but the stigma is integrated into the industry's business model. Just like in your room, you just have to charm them so well that they don't care where you have been. Make them glad that you're here now.
Volunteering was a humbling option of mine, as it helped contrast how camming affects my ego. It also demonstrates comfort with working with people (that don't want to see me naked) and reminds me of how life was, before I made my own hours and got naked. I will emphasize the importance of breaking the gap up a bit. If getting a job is not an option right now, there are many creative ways to present yourself as an experienced person. It's wonderful that you have a goal and a plan. I think that will make it easier for you to show an employer or anyone that you've spent time thinking about yourself and future.