Pilom is right. Your life would become revolved around food.
You should check out the following three things:
Emergency by Neil Strauss in which Neil detail his experiences in trying to become more self sufficient and gaining the abilities to escape from the system
Island to Oneself by Tom Neale for a first hand account of trying to survive on a deserted island for 16 years.
And Survivalistboards.com, which is full of conspiracy nuts but has lots of information about becoming more self sufficient.
You should check out the following three things:
Emergency by Neil Strauss in which Neil detail his experiences in trying to become more self sufficient and gaining the abilities to escape from the system
Island to Oneself by Tom Neale for a first hand account of trying to survive on a deserted island for 16 years.
And Survivalistboards.com, which is full of conspiracy nuts but has lots of information about becoming more self sufficient.