please help me improve my game!

I was hoping you guys could give me some help with my games--I'm just a beginner, but i would really like to get better :)

I would like it if i could get advice on what my weaknesses are and how to improve upon them.

here are the last 5 games i lost

Comments on your first 3 games

In Game 1 you were killing your opponent and just misplayed the end of your attack.   Totally winning would have been 11 Bxf7+  Kd8  12 N-e6+ and Black must sacrifice his Queen......also, fyi.....6.....c4 and 7.....a6 were big wastes of time at the expense of developing his pieces.

Game 2 -- you have to guard your pawn on move 2, ie; N-c6 and if 3 Bc4 threateing mate then 3.....g6      5 ....Bd6 is very bad.   you must guard your "g" pawn and strive to play ......d5 to contest the Center.

Game 3 -- Black's 2nd and 3rd moves are poor.....first because it's unclear where the Bishop is best -- certainly not ....b4 where it can get "kicked" around. .....c6 poor as it ignores defense of his "e" pawn.     5 Nxf7 looks best getting his Rook.    Black should win with  8.....Nxf7  9 dxe  Nxe5

Beginners can't think fast enough for blitz. It's like driving a car, you don't go zooming down the interstate when you are learning to drive. You go slowly round the quiet back streets and learn how to park, etc., very slowly.

Go at top speed from the get go and you die!

Same with chess. Try playing more "turn based" and "standard", especially "turn based" - think about each non trivial move for twenty minutes, check against the book advice, use the analsyis board for every option you can think of. When you get good at turn based, try standard at the slowest speeds (45 | 45), then in five years or so, when you make Master, try blitz.

And of course, study! Use up your full allotment of free Tactic Trainer and Chess mentor, then cough up for a Gold account (at least) and keep on studying and training at what the Gold allotment allows you. Get a beginners book (Chess for Dummies isn't bad) and study if as if you were revising for an important Math exam.

Chesstempo.com's free membership is considered by many to be superior to the paid membership here from a tactics problems perspective.  Doing tactics problems is a big help.  

thanks so much for all the help guys!!! I'll study up on my tactics and play some slower games!