People who WILL NOT seek the positive will create their own increasing discomfort.In co-creation energy, if you hate yourself, you will harm yourself. If you love others, you will know love. The beautiful St. Francis prayer becomes functional.
Every one gets a choice with increasing pressure/relief from the new energy. As you said, build that happy muscle, no matter what. Many will just not get it and flame out next year. Others may get caught up in local or national karmas. Stay in that happy place, always send love. You are what you do.
In simplest terms, just be happy regardless, like the lesson at the end of The Grinch who stole Christmas. Seriously.
Those of us who are good at energy can send love and light where it most matters.