I am an old fat lady who loves to hike, but has just started doing it in the last year. So far, I have only done small day hikes, with my record being about 10 miles in about 5 hours. Of course, this is with a very small pack of nothing but water, Kleenex, a boxed lunch and a few granola bars. Now my husband and I are planning to hike just the GA section of the AT in May of 2016, SOBO, in about 8 days. Is that a crazy expectation? Any advice to give the newbies?