I want to give you a virtual hug as I could had written the exact same things for me. I struggle with the same stuff and now being close to my 40s it is exhausting. I got diagnosed with ADHD before almost 5 years but as I look deeper into I tend to believe it must be more like a childhood trauma result than just genetics. Lookup C-PTSD and the overlapping symptoms are way too much for this would be just a coincidence. But every step towards a better situation is a good step.
You should question his mental capacity for numerous other reasons other than this answer. And the fact that this guy is the only reply to Trump, should had forced you to question the mental capacity of the majority of the population