Vyvanse prescription without a family doctor?

I was diagnosed 15+ years ago by a specialist and have been on medications through family doctors since. Few years ago my family doctor retired and I have been without meds since. When I finally got myself to go into a walk in clinic to get a refill I was told walk in clinics do not prescribe ADHD medications. I've been on a wait list for a family doctor but I don't see it happening anytime soon as a lot of people in my town have been in a waiting list for years and I only went on the waiting list few months ago.

Is there any way to get my prescription??? :(