Does anyone who has ADHD based rumination have any medications that helped, or any tips and tricks?

Two years ago I had a mental breakdown from severe rumination related to my ADHD. I (27M) took Vyvanse after being diagnosed as a kid but weened off in college. Anyways, I had a terrible breakdown two years ago that has resulted in a lovely new GAD diagnosis and I’ve spent the last two years trying to pick up the pieces. At first it was believed that I may have developed OCD. However after medications made no difference and a switch to another Psychiatrist, he firmly believes that it is mainly caused by my already long history with ADHD. However CVS and other pharmacies refuse to fill my Vyvanse script due to “drug seeking.” My Psychiatrist is a great advocate and he got the pharmacy to believe that I was indeed not “drug seeking.” However the big issue is now there’s shortages. We’ve tried every pharmacy in LA, nothing.

I would like to see if Vyvanse saves the day but I’ll have to wait and see. I cannot understate my suffering from this. It’s not “I can’t focus.” It’s an all encompassing rumination that won’t let me sleep as my mind wanders from thought to thought days at a time, most of those thoughts being negative. Im functional now, barely. But go through intense days long rumination axiety benders where I’m hardly even human.

Also I don’t want to just sound negative. I’ve met the love of my life, trained and am now hired in a new profession and have strong friend and family bonds! Gotta stay positive!