Disclaimer- I own nothins, Doctor Who belongs to Moffat and the BBC. Sad times.
Let me know what you think, I've never done this before so reviews mean a lot (please be gentle ;) )

Gasp –

His eyes opened, his vision blurry, but he could that wherever "this" was, it definitely wasn't safe.
A dark room. Rule thirty-two. A gulp. Stay away from dark rooms.
He felt around his fingertips brushing a cold orb... A door knob!
Eagerly, he pushed it... and entered his legacy.
He was now in a clearing, Gallifreyan skies burning above him and snow everywhere.
He was surrounded by mirrors, all in a circle, all pointed towards him.
And do you know what they did? They made him see.
Slowly, reluctantly, he lifted those bright old eyes and switched their gaze to the reflection... and that's when it started.
Voices struck him, and images too, all in that landscape that was no more.
Flashes of his life, of this regeneration; he could see the Ponds, his little Amelia, running, laughing... crying, dying...
A blink to another mirror, and another, but he carried on seeing the days; Utah, the pirate ship, the Star Whale, many Christmases and his adventures with Clara.
Oh Clara. But she wasn't the same. She wasn't the Ponds.
And, even though he hadn't changed his face when he'd met her... He had already died inside.
"Very old, very kind, and the very very last..."
He looked up to the sky, tears in his eyes, "A-Amy?"
"Hello old friend." He smiled. Was she back? "Here we are, on the last page..."
His face fell. Just a repeat of the past.
Then, suddenly, an image of himself telling little Amelia a bedtime story, "I hate repeats."
Then, the blinding light of the crack, followed by the fire of Grandfather.
He felt the days seeping from him as they had then, golden wisps cascading around him, him hearing his own voice say "I have seen things that you wouldn't believe! I have lost things you will never understand!"
He felt tears run down his cheeks, as he stepped back from the mirrors, wanting to fall to his knees as he heard his story, over and over-
"Geronimo!"
"Rule one, the Doctor lies."
"On the fields of Trenzalore at the fall of the Eleventh-"
"Silence will fall!"
"That's the crack from my bedroom wall!"
"I am Oswin Oswald! I am human! I am not a dalek!"
"Hello Sweetie."
"Spoilers..."
It was too much.
He rose from the snow he had fallen to in agony, forcing himself to look at the mirror dead in front of him.
It showed yet another image, but this time of the hotel inside the God Complex.
At door eleven... Opening the door to his greatest fear.
He turned to the one behind him to see it... and stood in shock.
His greatest fear. His legacy...
He was staring straight into a normal mirror. At his own reflection, as his horrified, tear stained face.
He was his own worst nightmare.
He was the one he had lost faith in.
So he sank to his knees once again and wept in the quietness, as the words that began and ended everything echoed around him:

"Trust me. I'm the Doctor."