Have been through a couple of periods in my life - both times when the NHS has been having its own troubles so appointments got cancelled/lack of knowledgeable experts for me to even get to see and there seemed no end to that and I've concluded both times that nobody except me was even bothered so why the hell should I bother anyway, we're all gonna die anyway whatever we do or don't, and both times my own inner resources have finally won and carried on preserving my life. It's a real sodding nuisance not having pretty straightforward access to any relevant psychological help, frankly.
One thing a CBT -style 'talking therapy' counsellor said to me one day 20 years ago has stuck though! This was to do with troubles at work at the time - she asked me if I'd ever wondered if perhaps my OWN standards were too high for most people to achieve, since I seemed to have such a low opinion of most work colleagues capabilities? I accept that sometimes, yes they are, but whilst not being another Einstein, neither am I stupid - so do realise that everyone has an off day at times, so I do try to make allowances, honestly, I do! just that certain people don't show me much sign of being human - at times!
Edit to add - straightforward and QUICK - access to psych help.