For me, this comes and goes. When I am "there", I do not really believe it has been otherwise, or that it will ever be different. But, the better times, the good moments, I have to remind myself, are just as real. For some reason, they slip away and are lost to mind too easily...
There are times when nothing feels quite as warm, safe, dark & lovely as the corner of a couch under the blanket. I found I did much better with a wood stove---something to be fed, tended, that gives back a soothing warmth, delightful, contained fire. And, I always feel better if I go camping. Even when it seems a stupid, impossible, thing to pull together for.