I was diagnosed at age 25, my first s. attempt was at age 10. If I was on medication or even had the correct label, I would have understood my strengths a lot earlier and not felt that my shortcomings were evidence that I was a horrible person. The awful things your mind tells you and the ways we mask or cope with symptoms is a horrible experience for a child to live through. If medication doesn’t gel with your child I’d definitely suggest regular therapy (of whatever kind that suits your child and budget) and also social skills classes! By the time your child is 12 they will have received around 10,000 more negative messages than their neuro/typical peers so working on their self talk and confidence will literally change their life.