I have had panic attacks and depression and anxiety for years, tried all sorts of things. Honestly, I think most people have this going on at sometime in their lives and just get on with it somehow because they have to.
We are not very in touch with our feelings, people often tell me they are anxious when they mean excited, depressed when they mean sad. Nothing wrong with any of it and we do get to make some choices.
The market is flooded with self help books and the NHS provides Mindfulnes and CBT, so it is something that millions are coping with and they are all walking about, going to work, getting the shopping etc.
I find not watching or listening to news of any kind, no documentaries that might be upsetting, even soaps which are all doom and gloom, can help, we are burdened now but non stop anxiety making media reports and dark programmes.
Try to do something physical everyday, something intellectual, something emotional, something social......
You need to keep your own inner energies flowing.
All the celebs claim to have things which they feel will keep them in the limelight, especially since the royals have started their angst fest, you need to ask yourself if it benefits you in some way and if it doesn't, take some time off.
Give yourself 2 hours a day when you are completely distracted by a good book, hot bath or film whatever takes you mind off it, and then extend those 2 hous to a morning, when you go out or have a mate round sometimes these modern conditions of anxiety etc are just routines we set ourselves.
Take control of it, you might not be able to get rid of it (I can't) but you can manage it better.