Paradise or Reincarnation?

At one point I was dying and now I'm here waking up with my head in the lap of a very warm and kind lady who looks like my late grandmother.

I looked around, I was in the shade of a tree and around it in every direction (those I could look at from my position) were seemingly endless fields of green grass. I looked back at the lady to clarify my doubts.

"Hello, I'm sorry, but could you tell me where I am and who are you?" I asked.

She gave a gentle smile and then replied.

"This is an in-between place where souls, or at least part of them, according to their individual belief, pass to receive their destiny for the hereafter. And according to that you should already know who I am." The lady replied.

'Well, it looks like I really died, now let's hope that what I want happens.' The young man thought.

"Considering your life, your actions, and your future perspective and accomplishments, if you had lived your full natural lifespan, I deem you worthy of paradise and final rest, or you can choose to continue your journey and fulfill your dreams." The lady explained.

"Serious? Can I really go to another world?" He asked.

"Yes, but first I will send you a few times in a little tutorial in the world of game of thrones, to test your perseverance in going to another world. You will assume the adult body of a random character and have to survive there with nothing but your knowledge for a certain period of time." Answer the lady.

"OK, but what are the requirements to pass the tutorial?" the young man asks.

"You'll know when to start. I will send it now, are you ready?" She asked.

"Yes" He said.

Then he felt as if he were falling asleep, and sinking into peaceful darkness.