Living in the woods, minding your own business

Hello fellow survivors,

I have a question (again).

How viabale (if at all) is it to basically build your own shack in the woods and just survive?

I get that it isn't too thrilling for the most but I really have to ask: Can I just pick a strong lumberjack or park ranger, grab some tools and head for the woods straight away, building my own little safe haven and living from what mother natures provides?

And if it's possible, what do I have to take into account?