Yes, some of my advice was assuming your rating was lower than it is.  You may be beyond Silman's Endgame book.

I do think you missed a tactical shot at move 17.

My USCF rating is in the low 2000 range.

My ELO Rating is 2120.

I think Simon Webb's strategy works only if you're already a strong club player (1800+), else random tactics will get in the way.

And even there, it may be a better bet to complicate the game...

Hi,

thank you very much for you answers. Some of them are very useful.
Yesterday, i played another game, and this time i missed a tactial shoot. Here is my game:

[White: MaSu]
[Black:N.N]
30 Minutes/ Player
1.d4 e6 2.Nf3 d5 3.e3 c5 4.c3 Nc6 5.Bd3 Nf6 6.Nbd2 b6 7.0-0 Bd6 8.Qe2 Bb7 9.dxc5 Bxc5 10.e4 dxe4 11.Nex4 Be7 12.Rd1 Qc7 13.Bg5 Nxe4 14.Bxe4 0-0 15.Bc2 Bxg5 16.Nxg5 g6 17. Qg4 h5 18.Qh4 Ne7 19.Ne4 Bxe4 20.Bxe4 Rad8 21.Qf6 Rxd1 22.Rxd1 Rd8 23.Rd4 Rxd4 24.Qxd4 Nc6 25.Qe3 Qd6 26.g3 Ne5 27.Qe2 f5 28.Bc2 Kf7 29.Lb3 Kf6 30.h3 Qd3 31.Kf1 Qxe2 32.Kxe2 Nd7 33.Ba4 Nc5 34.Bc6 e5 35.b4 Ne6 36.h4 Nc7 37.a4 Ke6 38.Kd3 Kd6 39.Bb7 

and Black lost on time. On move 30, he offered me a draw (both players got 2 minutes), but i moved on. At the end the game is equal, and i offered him a draw, and he was happy. I think it was not fair, to beat him with time. He played quiet good all the game and so the result is ok.

What do you think now about this game? Where could i play better? I think i missed something at move 17 but i could not calculate it.
Colle is not so agressive like 1.d4 2.c4 but it is very solid. Do you think, that the chances to win are much smaler than in 1.d4 2.c4 openings? My opponent has 500 ELO points less than me, so i want to play a game without complications and without any chances for him (Tigerchess!S.Webb). Was this the wrong decision? Why was it not possible, to beat this weaker player, with this strategy? 

Look at the game from GM Giri in Reykjavik this week
GM Giri, Anish(2722)–Christiansen, Johan-Sebastian (2071)–19.02.2013 
He won with the same strategy. No chances for Black and later he won the endgame easily.

I've rarely seen such a group of disappointing replies.  The OP asks for help, and all we can give is a couple of scolds and "go read a book."  Surely we can do better than that.

The question of how to prosecute an attack effectively is a difficult one.  It's essentially a matter of judgment and feel, coupled with the ability to calculate well and recognize the tactics.  There's no quick fix.  This is a skill you develop over time, with both practice and study. 

A few specific tips:   

-- it's easy to become enamored of and over estimate your own chances.  Always keep an eye on your opponent's counterplay.   

-- pick a target; usually the opponent's weakest point.   

-- in situations where you are advancing pawns in an attempt to open files, you will get to a point where you can capture with a pawn and open a file.  Think first.  Sometimes it's better to wait to open a file, and first build up behind the pawns.  Then decide whether to capture or advance.

-- generally speaking, build up your attacks before launching them.  As Yasser Seirawan says, invite all your pieces to the party.

-- never assume the attack will play itself.  Always be calculating - both your moves and your opponent's defensive tries.

As for books and study material, we used to read Vukovic's Art of Attack in Chess.  Still a classic.  Today, you might also consider Aagaard's Attacking Manual.  It's excellent.

I would also suggest exposure to GM games.  Pick an attacking games anthology.  Or try games collections of famous attackers.  Kasparov and Alekhine are two personal favorites.

The old fashioned way was to read and study chess books.  I have no idea where to recommend you start based on one game, but have you read My System?  How to Reassess Your Chess?  Have you looked at Yusupov's training course?  How about Euwe and Kramer's middlegame tomes?  There's so much study material out there, pick some and get to work.

This was a normal game at the chessclub. We play a normal tournament. It doesn't depend on fast or slow games. Your decisions for making moves are the same, if you dont know, how to play in such positions. So, how can you train it, to play better such positions, to make the correct move.