Happy New Year...I know you are glad to be walking without those aids at home...give your poor upper body a break. I think you are doing very well. No worries for the napping and I shouldn't worry about increasing the walking too much. I'm assuming you are breaking that 40 minutes up. I figured out trying to do more didn't really help my stamina the first three months ...short walks often best in my opinion. It is going to keep getting better.