Okay, so I have been trying to play more aggressive as white, and recently played an online game, that went rather fast. Yes, my opponent made two serious blunders in my opinion that helped, but over all, I think if you are openly aggressive, it plays to the psychological game, creating doubts in your opponent, and causes them to make those mistakes.
I am not saying to play irresponsibly aggressive, attacking with just one piece, however I think many players overthink what is needed to attack. You dont have to build up on one spot then after every piece is attacking it, and finally launch head long.
Instead, if you see a weakness, use it to your advantage. An open pawn is often the most typical, and while developing, you can usually direct your pieces in that pawns direction. If you opponent defends it properly, then you continue development, if not, stop development long enough to pressure or capture that piece safely. That is how you win a king pawn game. You be the one up a pawn.
Anyhow, I will post the game where I am the aggressor, and let you see what I mean.