Vienna~
Do what you feel is comfortable, I take my dogs for a half an hour walk at least 4 days a week, and I do crunches in my home cause I am the same way...I have alot of extra weight that I want to get rid of before I can even imagine setting foot in a gym or going running...I went running once sine I've been on Atkins and some guys from highschool drove by and yelled really rude things...ever since then.. I plan to lose before I plan to run...I do what I can at home and it seem to suit me...I have a leaner torso from what I recall I had 4 weeks ago.

Have a great day!