No it's not your fault, yes this is a SE issue
DDoS attacks have been plaguing this game for years, and Square Enix’s response has been exactly what you’d expect: absolutely nothing. Players dump ridiculous amounts of money into this game, and in return we get the same unresolved problems over and over. Funny how it’s “not an issue” everywhere else, though. I’ve played on Japanese and European servers, and somehow the sky isn’t falling there.
So no, you’re not crazy. The white knights can stop pretending this is normal, and SE can stop acting like they’re delivering anything close to our money’s worth.