I can't really add anything except to offer my condolences.

Maybe you could consider taking walks as an alternative activity for now. It's easy -- no special equipment needed except comfortable clothes and good walking shoes, no prep time like cleaning a drive train or pumping up tires, and less affected by winter weather (for me at least). I find that a nice long walk can help me clear my mind and work through stress.

You will get better. I hope you start feeling that way soon.