I would first try to figure out what happened , then pinch myself a few times, even go as far as to hit myself with a nail-bored, after I learn where I am, I will see about getting myself a stable supply of money, and a team. Then I would see about get a ride to sinnoh, an then to Cynthia about my capabilities of returning to my world, so I will then travel across the land and defeat the gyms.After many years of training I will then beat all the champions, thereby becoming the grand champion, then I will return back to where I first started in this strange new land. Then I will release all my pokemon and move to Mt. Cornett, to settle down.
(Great I now need to write a fanfic....)