The media in the UK is particularly Covid focused and anxiety-inducing. Friends in other parts of the world don't seem half as bothered/worried and the news there is not constantly dominated by Covid (believe it or not).
If you have a tendency for anxiety it's probably very difficult to see a way through this, but the best advice as given above is, stop reading the news (I always recommend a broadsheet paper version - it automatically provides a much more rounded view of what's going on in the world - if you have to) and social media, especially MN!
I'm a numbers person and like data and analysing and, from what I'm seeing, it's not as bad as perhaps things would seem, but that's my take on it. DH had Covid recently after being double-jabbed, mild so please don't worry about that. Long Covid does exist but it is also true that if we think we will suffer side effects then, opposite to the placebo effect, about 20% of people will experience these symptoms (it's called 'nocebo'). Long Covid is more common in women in midlife which I can imagine is compounded by the effects of peri- and menopause (e.g. head aches, fatigue, etc etc).
Take each day as it comes, focus on the fact that probably most of the people you know are and will be absolutely fine and almost certainly will be if double jabbed. At some point we need to get out of the habit of looking at infection numbers and logging cases - and stop testing!
For most vaccinated people, and children, Covid will be mild. Excess deaths in the UK are currently BELOW normal according to Euro Momo.