Me vs. 1700 Rated Player

I played this game pretty well up into the late middle game end game. I really need to focus more. I had a better position for the entire game just about and i ruined it. Would you help me analyze this? I don't want a repeat of this in the future.

http://www.chess.com/home/computer_analysis.html?id=117682919&game_type=2

The link doesn't work

Here, this link should work

http://www.chess.com/livechess/game.html?id=117682919

3 Q E7... FOR U WOULD SOLVE MANY PROBLEMS, MY DADS 1900 AND HE TAUGHT ME THAT VARIATION, SOME GM I CANT REMEMBER USED THAT AND IT GIVES WHITE TROUBLE, FIND OUT YOURSELF, I DIDDNT EVEN GO OVER THE GAME AFTER U TOOK THE SECOND PAWN TO BE HONEST, I JUST HAD TO POINT THAT QUEEN MOVE OUT. TRUST ME ON THIS. ITS ALMOST A REFUTATION MY DAD SAID. BUT IVE USED IT FEW TIMES SINCE I HARDLY SEE THAT AS WHITE. THE DANISH GAMBIT I BELIEVE IT IS. 

nice game!

I would seriously consider playing the d5 variation for black as it equalizes immediately. 

-Zach