Thought I would add to this thread
I've suffered from severe anxiety and OCD most of my life, and it's tainted a lot of things that used to make me happy. Very basic things can be a chore to me, to the point where I often feel like not doing feck all.
When I was a child I obsessed about death and found that the idea of a great vast nothingness up there was scary, with age I came to appreciate the beauty in it. But the leftovers of that fear resulted in adult health anxiety, which causes me to overly obsess about my health from time to time. It'd keep me up at night, making me reluctant to try and sleep. This fear also manifested in different ways, it made me incredibly scared of not being around people I cared about, for fear that it'd be the last time I saw them. The term would be adult separation anxiety, and it doesn't differ greatly from what some have in childhood, just made 10 times worse by the fact that you're supposedly a rationally thinking adult. And the all important figure in my life now is of course my better half, so that burden is on her now.
Alongside that mouthful, my OCD has stopped me from doing things for sometimes years. I've refused to start projects because my thoughts would taint it, latching on to the worst and most horrendous things, stuff I'd never want to think about, and I'd spend my time neurotically indulging in rituals to neutralise the mess in my head. This of course sparks a vicious cycle, which has lasted over a decade now, and will continue most likely for the rest of my life. It makes me doubt most things I do, even stuff I enjoy. To explain it simply, imagine having bought something or created something, being proud of happy of it, only to associate with the most depraved concepts your brain can come up with, and not being able to quite wash away that feeling that they somehow connect, even though you know rationally that it's a bunch of shite.
Its tough. Never easy going.
But it's taught me something which is that not only is it perfectly fine to not be okay, it's also perfectly fine to take all the time in the world to feel okay again. I often feel as if I've been thrown overboard and the waves just keep coming, but I always remember, if I struggle and panic - I drown. Sometimes life is about treading waters and taking it as it comes. Not your fault things get rough, you're just human.
Time for another beer I reckon