Frustration with ADHD medication

I just want to vent really quickly as I found out that the generic Adderall XR I took (sandoz) is now no longer manufacturing adderall XR. I’m actually so devastated. I’ve tried different doses of vyvanse and concerta and was finally able to land on adderall working for me after 3 months of titration. I’ve taken both TEVA and the brand name and they just don’t work as well as sandoz. The thing is, I also don’t know if it’s because I started with sandoz and was only able to take it for three weeks and now the “euphoric state” has worn off, or if it truly did work the best for me. Grrr I’m so frustrated grrr grrr grrrr.