I lost this game, completely!

I wonder what the reason was that made you voilate your own opening princples. 

Hi,

here the erroranalysis from Rybka. only big errors are with comment and showing the better alternative. In the pgn code ( click on pgn) you can read how BIG the error was

3 .. Qf6 lost 0.6 Pawns

4 .. Be7 lost 1.25 Pawns

7 .. Nf6 lost 1.39 Pawns

8 .. a5 lost 1.12 Pawns

and so on.

The Opening see http://en.wikipedia.org/wiki/Ponziani_Opening

The main thing early on was that you had to play ... d6 to protect your e-pawn.

I think this post is a really telling example of why a lot of players don't improve. It seems as though you are looking for us to tell you the one weakness that would set the whole game right if corrected. This is faulty thinking. Chess is a system, so the collective effect of the moves makes it a good or bad game. Sure, there are outright blunders, but more often we lose because we play a string of moves with "I dont know why i did it" as their basis. You yourself tell us that you violated opening principles, brought the queen out too early, and made too many aimless moves. Then you proceed to ask us what else. You have just told us!  If you would be interested in some training games, just let me know.