Anyone else get depressed when the weather gets dark

November hit and I just crashed. Feel like I have no energy to do anything, not even stuff I usually enjoy. I know it's seasonal depression but knowing what it is doesn't make it easier to deal with. Started taking vitamin D and going for walks in the morning but some days I just want to stay in bed. My wife has been great about it but I hate that she has to carry more of the load. Anyone have tips that actually work?