The only thing that has somewhat worked for me is to be physically active. I can clearly tell the difference between periods where I am active vs periods when I'm inactive.

Something as simple as taking a long walk in green areas have done wonders in the past. It empties my mind and I become nothing more than a machine that moves. It is the closest I can get to meditation and I think a lot of anxiety is trapped energy that needs a physical outlet.

I'm not diagnosed with anything, but I have been an anxious bitch for my entire adult life due to some bad things I went through, so I know how persistent and irrationally extreme anxiety can become.

Walking in forests and fields are not gonna magically cure life long brain patterns, but they sure as shit make them shut up for long enough that you get to enjoy life a little and are too exhausted to worry about all the stupid things that don't matter, but your brain loves torturing you with.

When you have walked in a forest for an hour or two or even just 20 minutes, something inside you automatically calms. Nature is so important for the soul and we sometimes forget that. Of course, in case you live in a scorching hot desert, you may not have this option, but if you have a forest around where you live, go for a walk on a well used trail and take in the changing seasons. After a couple of weeks and months, the longterm effects will be apparent. You'll still be anxious, but a lot less so.