Make your home as anti-winter as possible

Buy all the plants to help with SAD. Make it a haven. Hopefully you move somewhere with fantastic natural light. Not an East coaster but a Chicagoan (arguably worse winters?). If you’re in an old walk up, you might need to cellophane wrap the windows like I had to do. It makes a difference in retaining the heat indoors. It can be professionally done. If you’re in a new building, ideally hopefully you have a gym so you can get regular movement since the cold can make you not want to leave the house.