My whole life I've suffered from massive guilt, shame, and stress over not getting things done that were really important to me, and nobody understanding. "Clearly it's not important to you, or you would just do it."
I was actually diagnosed with ADHD 12 years ago, and the first medication and dose I tried didn't work, so I stopped, and basically forgot I even had ADHD. In part, I think I internalized the shame and dismissals from other people and still believed I was just "lazy" and "bad" and needed to try harder even despite having a clinical diagnosis.
It didn't help that my (now ex) wife also was totally dismissive of the idea that I had ADHD, as were most of my friends and family. Even from other people I know with ADHD, they would get angry or dismissive when I mentioned my diagnosis, saying I can't possibly have ADHD because I have been successful so far in my career.
I just recently decided to start looking into it again, now that my son has also been diagnosed. If I can learn how to help myself, maybe it will help me help him.
I recently heard a podcast interview with Jessica McCabe, and she said something that was mind blowing to me: that there is no one solution or cure for ADHD, and we need to stop looking for that. You will need a large toolbox of things to help, and will need to keep adapting and changing this, and it still won't ever be a "cure."
If anyone has any good info or resources to learn more about ADHD, please post them.