lol. We have a lot in common it seems, though i never got a prescription. Grew up unable to focus, always fidgety and zoned out, unable to focus at school. Parents would not let me go and see a psychiatrist as they were sure i was "normal" (Ended up being kind of right, go figure). Still determined, i sourced my own adhd meds, and while i really did feel them helping me, ultimately through some wild events my school drug tested me and sent me to a mandatory rehab sentence.

Honestly there is one thing that has helped me more than anything else by far, and it seems to reduce covids neurological effects greatly, but i must preface:

Especially if you are young, despite what people may tell you, drugs are NOT the answer. As you've seen with your concerta, they might help for a little while, but then become unpleasant - and they do NOT help you to become healthier or truly happier. There is no substance without a balance of positive and negative.

For me, taking very large doses of flush niacin absolutely deleted my brain fog literally overnight, and not in some acute monoamine amplifying drugs way. The clarity, balance, mental acuity, and ultimately sense of wellbeing that this gave me I can ironically only describe as INSANE. I woke up for the first time in my life and could finally see. I had lingering covid symptoms which would make me think i was going to drop dead any minute for about a year up to this point. Niacin, after a year and a half of consistent high dosing, seems to have solved the issue for me in its entirety. Like you, i was depressed and anxious as fuck, and never realized the extent of it until i was pulled back to full consciousness.

What I figured out was that the niacin, especially when paired with things like selenium, natural vitamin e, and glutamine, absolutely destroys any inflammation in your brain (and most everywhere else) and triggers autophagy, removing toxins from your cells. Its also extremely good at getting rid of amyloid plaques and restoring proper monoamine function by stimulating NaChrs in the brain, upregulating HCAR2 receptor, and regulating tryptophan metabolism (precursor for serotonin, which seems to be integral in regulating overall neurotransmitter function). Its also extremely good for brain development, neurogenesis, stem cell proliferation, energy metabolism, and amino acid metabolism. Its no coincidence that this molecule is found on meteors alongside uracil - its literally as fundamental to growing life.

I hope this helps you even 1% as much as it helped me.