@shutterbug55 – I can relate to your description of your academic achievements. Like you, it took me a while to get through school. I hated it. I took my exams numerous times and even then only got into college because someone kind saw something in me and gave me a break. I will always be grateful to him and others who have helped over the years.
Once in college I did OK and doing my PhD was one of the best and most enjoyable things I have ever done. I hyperfocused for 3 years.
Unlike you, I didn’t do so impressively so quickly. I take my hat off to your achievements.
Do you think that your autism overruled your ADHD? I guess it must have done to some extent? Unlike you, I find that I don’t have the energy to maintain a high level of interest as I get older. Well…. that’s not strictly true – my job is exhausting and when I have a break from it the old interest in everything comes back.