Being alone for a long time can either be the most rewarding experience, or the most dreadful feeling.
I keep saying be careful sean. I say that only because it
can be bad. You're head is a little different than most, so if that is better or worse for this kind of expedition is up to your future to determine.
If you go south however, it will be happy
I am extremely envious of you still. I would love to do that too, my trip would last a year, more if I ended up in brazil. But a route along south of u.s. would be short, and would learn much.
I hope your trip is wonderful, and I'll probably talk to you soon my friend