I found it most helpful to concentrate on just a few things that have the most impact because else-wise the list of choices paralyzes me. Have you tried all these things on your list?

I mostly do one of these depending on what's going on, in order of effectiveness

Walk the dog/go outside
take a hot shower
deep breathing/mindfulness
clean/household work/garden work
drink tea and read

For example going outside/walking the dog helps with everything, but tea and reading isn't that helpful for when I am very anxious.