At What Age Can You Ask Your Doctor To Take

At what age can you ask your doctor to take you off of adhd meds, I’m 20 and i stopped taking my meds back in 2017 of January and I was this close to joining tthe army but my medical records said i was never off My meds even tho I haven’t take them in almost 2 years and I even went to and graduated with oboes maintaining As and Bs withought even taking the meds