YANBU.
The advice on these sorts of threads on the Relationships board is always "try a new hobby, go online dating, go speed dating, accept every invitation, join Meetup" because if you keep doing the same things that don't work you need to try something new.
Lots of areas don't have Meetups. Some clubs can be ridiculously cliquey. It's not automatically true that starting a new hobby opens up a new world of socialising because often some hobbies are full of married couples and come the weekends, they're all doing family stuff and you're always, year in and year out, doing stuff on your own.
People have bashed the OP for seemingly being negative about every idea offered but for many of us we're followed all that advice and we're still in the same boat. You can be open as hell, have a wide variety of friends and hobbies, be positive, be attractive or unattractive. But if you've done that for 6, 7, 8, 9, 10 years and you're still single, I think it's fucking impossible after that to not get pretty fucking depressed about it.
Then the other advice is stop looking and it will happen. Yes, well, if you want a new job you don't look for a new one do you, they just turn up in your lap.
Sorry but a lot of it is down to luck or our inbuilt dispositions that we seem unable to change (ie, some people seem totally and utterly wired to find many different 'types' attractive, other people not; I could swipe 100 people on Tinder and only find one even remotely attractive while someone else could find 30 of them attractive - this is clearly the case on the Dating thread where some people are dating different people regularly, others hardly ever).