i win by gambit

nice trap

hmmm greedy

yes it's a trap but for black or white ??? 

3. .. Nd4 ? is a mistake

you violate the opening principles move 1 piece twice and if white have played correctly he or she would have outplayed you in the opening.

white should have played sth like

4. Nc3 ,0-0 or d3  gaining much better position then black

and even after a weak 4.Ne5 ?? Qg5 not 5.Nf7 ?? but

5.Bf7+ Kd7

6.0-0 giving a minor piece for 2 pawns and weakening position of black's king

then black has advantage but the position is surely not lost

so all in all it's a risky trap both for white and black ;) 

still congratulations on a quick victory

Interesting trap! Thank you for sharing it.