I've been taking walks everyday for months that about all I can do, learning qigong I just can't take it all in behind the brain fog I have sounds complicated. I can't really socialize it drains my energy too much, I'm not sure how much more I can change my lifestyle.Well then it sounds more like an obsessive intrusive set of thoughts. When people are saying change your lifestyle, they mean that, your lifestyle. That means it’s a work in progress. Of course we all want instant results but that isn’t necessarily going to happen.
Instead of ruminating on the obsession all the time, go out, take your mind off it, socialise, eat well, etc. But then know your limits. If exercise makes you worse, don’t be trying to go hard. Take it slow. Take up an exercise like qi gong which is gentle.
That doesn’t mean that you’ll magically be cured over night. Your mind will still go there but you need to set up habits and be consistent. You also need to realise we are not our thoughts. Most of us (all?) have barely any control over our thoughts 90% of the time.
Sooner or later you’ll realise there’s more to life then the small field that you were looking at all the time.