I have these issues too. I wasn’t so much of a worrier until I developed chronic health issues related to Covid. This last year and a half has been very hard for me because no one understands the virus, or knows what it will do. Now I live in fear. I read someplace that just because you think something, does not make it true. Sometimes reminding myself of that helps. Deep breathing, and postponing worries has helped me too. At night I will deep breathe, and tell myself to let a thought go, because right NOW there’s not a thing I can do. I’ll think of it tomorrow. Sometimes that helps.
I also cannot sleep in the morning because the worry and fear starts as soon as I awake.
I hate it.