Queen's pawn beating

I need some help in my queen's pawn games, and the following is proof.  Annotations are inside.  My main questions are about development (which is where i'm sure i've gone wrong) and general ideas in queen's pawn positions.  I'll let the game say the rest.  Thanks in advance for your help.  There are a ton of annotations, and some of my side lines may be a bit random.  Like i said, let me have it...

the "system" you are planning to employ, the King's ind>ian defense is not recommended if you do not "know how it works". It is by far one of the most theoretical openings possible - one could easily get smashed on the Black side.

5..exd4 saves the pawn.

"Doubling pawns" isn't a threat, especially when giving off a bishop for a knight. dont' be misguided.

instead of 17..Rdg8, you might like 17...g4 (the correct move). then 18. hxg4 hxg4 19. fxg4  followed by Bh5, and maybe Bg3, etc.  Just a thought.

nice try!

exd4 was solid.  i overlooked it.  Yeah, from now on, i guess i'm going to meet d4 with d5.

he pretty much said it. I have had decent sucess in using king's indian though, maybe because I play it slowly. Basic thing to remember though d4 games are "closed" games almost always. That explains why white exchanged his bishop early for your knight, knights love closed games bishops are usually passive in closed games.

Exd4 would have saved the pawn because of the tradeoffs, e.g. exd4, followed by white exd4. Even if Black plays exd4, Bxc6, exc3, Bxd7+, Qxd7, White's best option would be bxc3 doubling the pawns and black is just barely up in postion. This also gives your remaining bishop more open space which when this is all said and done I technically consider everything even.

Move 7 your best bet would to have been KnD7 so that you threaten the pawn but if he protects by f4 your bishop is in prime position just as if it had fianchettoed on that side of the board, threatening d4.