But I Have An Excuse ! ! !

There are days when I feel like I get nothing done. I know I think I'm working on something. I do my exercises for my back and legs - I remember the pain so I know I did them, but I look at my WIP and wonder how it's possible to have so many.
I do try to do a little spinning & knitting every day so I think I should be farther along than I am. So why am I still working on a pair of socks that have been on my needles for over a year. I just can't figure it out.