Sneakrow

I did. And I will, 8 times more.

I am 27.
As far as the opportunity goes, I had no obligations to tend to at this particular time in my life; my apartment lease was up, no car payment, no girlfriend or children. I sold EVERYTHING I owned (aside from one small box of sentimental stuff that I left with a family member), rented a car and had a buddy drive me to the Atlantic Ocean where I started in Delaware.

I am following the American Discovery Trail, a coast to coast route that links together as many State and National Parks as possible on one continuous trail.
It does veer towards backroads and actual trails as much as possible, but sometimes US Highways must be followed, given the current location.
I use the ADT as a guideline for the most part, but sometimes I will take alternate routes on Highways to ensure I will hit a resupply point.

Nothing out of the ordinary.
I have heard Mountain Lion screams at night but nothing has bothered me as of now.

Honestly, I didn't train at all and I paid the price. Had a lot of blisters in the early weeks but after about 4 weeks I was able to walk from Sunrise to Sunset.
If I were to give any advice from what I know now, I would say to do calf exercises and walk to the grocery store with a hiking bag, stuff your groceries in it and walk back every day for a few months.