Those thoughts going around and around in your head can become destructive if we don't fiond ways to quieten them down.
One thing a psych told me was to start singing as the mind can not sing a song and think negatively as well. The only song I can usually come up with is Old McDonald had a farm! Lately it has been Tie a yellow ribbon round the old oak tree. I only know a little of that song so it gets very repetitive!
Does it help to write down your thoughts, than look at how you can change some of the negatives or to accept them for what they are?
When out walking, if my unhelpful thoughts start getting a bit monotonous I try to think of a colour for every letter of the alphabet, a flower, a name of a country or what ever. Before I know it my walk has ended or I have walked a long distance and need to turn around and head for home again.
Have you ever tried the phone help lines? I have been fortunate enough o get a couple of lovely people on them who have really helped me.
There is a lady at Church whom I try to talk to who has hearing aids that don't seem to work very well, as we have two completely different conversations! Ha. Ha.
I do so hope yo are able to find the help that you require Elizabeth! Hugs to you from Dools