I have had anxiety issues for over sixty years, since my mid twenties. Brighter lights have slightly helped the winter blues. What helps me more than anything since my wife passed is to stop staying inside when it is cold and dreary, and actually get outside and do something...anything. I've learned that just leaving the house, going outside for a walk or a drive, or forcing myself to go to a movie I don't really want to see, all helps. I've read plenty of books about anxiety, which at times can be debilitating. There are plenty of mechanisms that help, you just have to find the one that helps you because everyone is different. I've been retired awhile and am able to take a trip to Florida, or Vegas, or wherever if I get too sick of the dreary weather, but my kids and grandkids all live in Louisville and Lexington, so I don't like to be gone long. I trip to visit them will generally keep me busy enough to cheer me up.