Don't be too hard on yourself. I think it's the time of year. Outdoor activities are pretty much out of the question in most parts of the country. The days are short and gloomy. There just isn't a lot to brighten the day.
I'm sure your "life" will be back when the flowers start blooming (though the daffodils are already blooming at my neighbors and it hasn't helped me) and the temps go up.
Pray for an early Spring!
Sheila