You look wonderful!! I am still going ga ga over the hair. And no wonder you'd want those booties on a desert island. Who wouldn't?
But I am sorry you have been feeling down. I certainly understand, coming from where I do. It's hard. I try to get outdoors during daylight hours in winter. I walk in all weathers, even -40 C, even in a blizzard. Obviously, not every day (freezing rain will even keep me inside, bleach!!) but I've found it really helps to make an effort. And there are almost no impossible weathers -- just impractical clothes. The right puffers/ hats/ mitts/ boots will do the trick. But I am not going to lie to you. I can't pretend it is fun, and it is CERTAINLY no fun dressing for it!!
I think the darkness and grey skies are why I reach for colour in my wardrobe in winter. It's hard even to do that, because it's not terribly practical (especially light colours).
I know black is your personal "happy" hue, so what helps me might make you feel even worse! But I do wonder if adding in a bit of your cobalt and your dark red might be helpful in this really dark days. Also, more of your silver statement jewellery.