Frustration and Improvment

I seriously started playing chess in January of '09 and I can definitely say I have improved.  I remember thinking that players who were ranked 1200 and up were at the moment to good to play.  Now I'm playing against 1300 and winning.  Perhaps the best bit of advice for chess I ever received was to study one opening over and over till you know all the lines.  For about a year I did that.  I played and played the same opening and now I know I'm ready to try something else.  I'm sure my opponent found this game to be very frustrating.  I checked him into oblivion but that frustration got the better of him and it ended up forcing him into checkmate.  This is another 4 minute bullet.  Enjoy.