Sorry to hear that you're in a rut and a little depressed. Also sorry its taken this long to respond to you. I'm very jealous that you had lost 46 lbs since May. Fantastic, it works!!! Now, what do you need to do to get that motivation back that you had in May?
Maybe an old picture, self esteem, or a healthier mom for those wonderful children...somewhere in you is the motivation!!!
Like they say at Nike...JUST DO IT!!!!!

I have ruts frequently as well. When I do, I try to refocus on what my short/long term goals are. When I fall short of my goals I try to not be hard on myself. It also helps me to realize, that for me, LC is a way of life (not a spirnt but a marathon).

Find your motivation and get back into your groove!!
Good luck!