If I was to suddenly be transported to Middle Earth I would do three things.
First I would seek out news of Radagast, Alatar and Pallando and find out from them why they strayed from the plan or even if they strayed, if not what part did they play in defending middle earth?
Second I would travel and spend time with old Tom and once and for all find out who and what he really is
My last stop would be to the undying land, where I would spend time studying and growing into a better person so that I might return here and share my newfound knowledge.