One piece of advice I can offer, for what it’s worth, is to educate yourself but do not go overboard or let the ADD diagnosis consume you.
I didn’t realize it at the time, but it was doing that to me. It was also like I had put an “ADHD” label on my forehead and mentally was using it as an excuse for everything I had done wrong, and was still doing “wrong”, rather than focussing on my positive attributes and using knowledge to deal with the condition.
I also found I began “analyzing” everyone else I met or dealt with for whether they had ADD. Perhaps I was trying to make myself “fit in” more, but it became a bit of an obsession and was very counter-productive.
To all 3 of you, best wishes for a safe journey to becoming the person you always wanted to be 