Same problem here. It occurred to me recently that anxiety was probably a "coping mechanism" of sorts for me when I was younger, because it shone a light on deadlines I might have ignored otherwise, and probably gave me an adrenaline rush as those deadlines loomed closer. It largely worked when I was a teen and there was already a lot of structure in my life, but ended up losing its effectiveness over the long term. Now only unproductive forms of anxiety seem to remain.