The fastest way to change your life is to rip yourself out of your (physical and digital) environment. Change everything overnight. The places you go, the accounts you follow, the info you consume, etc. It's difficult but it absolutely works.
We have lost too many people around this time of year to not say it: reach out to those you haven’t heard from in a while, ask them how they are really doing, grab a coffee a walk or a hike. Chances are, someone you know is in despair. It can make a difference.