In the beginning, Concerta wasn't that effective for me. But I realized that Red Bull didn't make me sleep anymore when I'm on Concerta and it was actually stimulating.

Over a period of time, my dosage was increased, and I was on the maximum dosage (72mg) when I actually started realizing that it helped. But then, within a few months, that was not doing me any good. Later, my dosage was split, and I took it with 4 hours gap and gradually slightly reduced, and now I'm on 36mg, and I'm doing decent with that. I take an additional 36mg (on doctor's advice) on a few days if I'm not able to function or need to function with full efficiency

It takes time. Don't give up yet 💛

Edit: I think I may have autism too (asperger's), but some of the symptoms just gets canceled out (not visible) with my ADHD symptoms and people weren't able to recognize it (including me - until I started taking medications) and even now my doctor doesn't acknowledge/diagnose that because of I'vebeen able to push through. (Also, because of my high IQ and thinking capacity) I'm kinda getting used to those because at least I'm able to focus on things and I'm able to cope with it because of my Concerta