Is it possible to outgrow ADHD?

It's a neurodevelopmental condition, it doesn't really go away, you just can sometimes adapt to how you have already been coping. I'm 30 and wasn't diagnosed until 22 even though I have had symptoms forever. Meds are incredibly helpful and there isn't anything wrong with continuing them into adulthood.

You don't grow out. It is a very real condition. It is a thorn in my side.

ADHD is something you never really "grow out of," because even adults are diagnosed after years of medical silence. I don't take meds for my ADHD, but people consider you "grown out of" it when you don't rely on meds and can manage the symptoms on your own. Like Rodent said, it's all about learning to recognize your mental processes and practicing taking agency against the negative habits your ADHD contributes to.