I became vegetarian in 2018 but I don't think it was a particularly good change since I can still eat junk.
I gave up drinking alcohol in 2018. It may have actually been late 2017 I can't really say.
This was a profoundly good change. I have severe mental health issues and taking alcohol out of the mix was a good move.
I didn't let any toxic people invade my life in 2018. Another excellent move. It brings peace.