I am autistic (Asperger Syndrome) with some traits that can appear as OCD, and I have been diagnosed as having a Generalized Anxiety Disorder after having been in a medical ICU with stress-induced, out-of-control hypertension for a few days near the end of 2010.

Like you, reminding myself that "worrying is useless" does not stop it, and neither does the reminder that "Worry is the delusion of control." I still often find myself somewhere out in the future while wondering about one thing or another...and the key for me is to just let myself do that while shifting my thinking to simply waiting to see how things eventually do actually turn out. That is not easy to do, of course, and I rely heavily upon faith in our Maker as the provider of all that is good. At 67, I can now look back and see I have always had food, shelter and someone somewhere to talk to without my worrying having ever been necessary or useful. So, I just do my best to go with the idea of "Count your blessings" while trying to keep trudging along in the right direction.