any events that made people say 2021 sucks at the very beginning of 2021 and then proceeded to completely forget about it, just to do exactly the same at the very beginning of 2022 again
You may have noticed that people periodically tend to repeat the same behaviors, say the same things, and make the same mistakes: out of convenience, habit, laziness, inattention, and ultimately (pardon my boldness) for stupidity!
I too am always amazed at the stupidity of people, even though I have witnessed it numerous times now. About some behaviors, you have a hard time accepting them once and for all.
Accepting and being upfront on working to improve a, I deem flawed scope of myself requires guts from me. Constantly keeping in mind about, by itself has in the past lead me to.
accepting anything is often the best way of solving it instead of trying to change it, it is at least the most satisfying and reliable way, though not the easiest :3
I need to get better at accepting all this random crap random people say, just brush it off and say "well, they can think so" :3
It will happen eventually :3
Like you say, just being aware of it makes it happen automatically if you are patient :3