It is just not happening.  I do not have the desire to go for a walk on a daily basis.  It is not my thing.  It used to be back in the day when I didn't belong to a gym and it was my only form of exercise, but I am stressing myself out more than I need to about not going for walks, or mentally trying to plan my schedule to see if I'll have time.  Nope.  I'm done.  I am not going to torture myself any longer.  I haven't gotten any satisfaction out of these walks.  I tried to convince myself there was some, but there wasn't.
I feel like a failure, and I shouldn't.  This was assigned to me by someone else, and its their thing...not mine.  I really tried to make it seem like something that I was going to enjoy and get something out of.  I tried to treat it like it was my idea.  I tried to make it one of my desires...and it just isn't.
So no more challenges for now.  I am going to do things that I want to do in my own time.  My life is to make myself happy, and I know I get unhappy when I start putting too much pressure on myself for the benefit of others.
