Aw, LMH, I think your wonderful question shows that you've got LOADS to offer in the way of intelligent support! Seems to me to put the issue in just the right light.
Patootie, if you think of what you would like from February, the idea of orienting yourself sounds great, especially if it would give you the confidence to venture out more when the weather improves. What can you do? Do you have maps of the area? Do know already of places you'd like to go --for shopping, theatre, sightseeing, garden, art exhibition? Can you check on everything you need to get there, like access, parking etc? It might be nice to have a little store of already-planned outings for half days, or one or two hour jaunts, so that when we get a nice day you can just grab one and take off, safe in the knoweldge that you've already got it all lined up. Any good?
Stray thought. You obviously need to be very careful not to do too much physically in cold weather, but is there any chance you could do a little gentle upper-body stuff? Even a few gentle head-rolls can loosen your neck, and lifts with a tin of tomatoes in each hand can wake up your arm and shoulder muscles.
Another stray thought. You write so well, have you ever thought about keeping a diary? You know, like the Victorian Lady? Any obsevations of nature, memories, reflections on what you see or on what's happened. I really believe that at some point you will write professionally, and it's never too soon to start.
But the main thing is just what LMH said: what would YOU like to get out of this month? Whatever it is, go for it!