I'm an adult with ITP so I can't speak to the parent aspect. I've been to a few of the confrences since they were started and have been posting to this forum long before it became PDSA. I always learn something from the conference and the fellowship and contacts are invaluable. I was in Vegas last year since it's close to me. We had several teens there.
Yes, many of us have been struggling with this for many years, but that doesn't lessen your son's need. Each of us has to find our own course in our own time and his journey is just as important as any of ours. Given the hormones and peer impacts of that age, his may be even more important during this time.
I'd personally say that for the first 18 months after diagnosis I was a slightly possessed. Having been diagnosied with Hashimoto's thyroiditis and ITP on the same day, I haunted multiple discussion groups and surfed the internet several nights a week. I printed articles, made my PCP read them, suffered through the "now you can read anything on the web" lectures and fired back that I only provided info from sources like teaching universities and reputable medical sites. 16 years later, I find that I have spend far more time worrying about things than ever experiencing them. For most of those years, I never had to treat and stayed in the 50K range. I've only had to treat in the last 2 years.
"I am an old man and have known a great many troubles, but most of them have never happened.\" — Mark Twain\\\\\\"Worry is a misuse of the imagination.\" — Dan Zadra