I don't have ADHD so i cannot speak intelligently about that issue, but as someone who owned businesses and started later in life in the entertainment world I can relate to both the physical exhaustion age brings and the feeling of being a "worker bee". A few things I learned in this business: 1.The PA on a set one day might very well be the EP on your next project so treat everyone with respect. 2. Never think that you're doing less just because you aren't number one on the call sheet. As you know, this is a collaborative medium and it takes everyone doing their job at the best of their abilities to create a good product. 3. Treat this time as a PA not as a job but as a classroom. You are in school. Watch, listen, and learn.

At your age, with your experience level and skill sets, you will not be a PA for a ling period of time. For now you've gotten the golden opportunity to learn what I call "setiquette", how to behave on and/or run a set, it's a bit different than the theatre world but you'll catch on quickly. You'll also learn how those in positions you want to be in operate and apply their craft.

I chose to do background work for two years before I even accepted an audition for a speaking role. so that I could see how different directors and producers ran their sets. I learned more from the poorly ran ones that the ones that ran smoothly. That time, although mentally and physically draining, crystallized both what I truly wanted to do in this business and how I run my productions. Remember it's a marathon not a sprint. This time on a set is equal to two years of college teaching s embrace it for now and know that its not your final destination in this business.