I'm going to go with 'not dying' as the achievement of the year.
Sounds easy but boy, has it not been.
Had heart failure in 2022, and at some point in early 2023 it turns out I had a stroke and that seriously fucked up my head and destroyed my vision (I went meme-levels of cross-eyed).
2024 was recovery and uh, was not the smoothest. But fuck it, I'm almost normal and I didn't completely torch anything and so, yay.