alot of mine lately havent gone well either. several i get the lead and end up still losing some how and make mistakes i dont normally maketo lose the lead(not counting pawn leads) and then go on to lose. I have done it a couple times before, i know its not easy, mostly depends on where everything is at the time of you doing it and sometimes its good to plan ahead and try to set things up to get you the advantage to help with it, even though thats not easy as well. try some practices runs for only at thatpoint in different situations and different pieces and try to find openings in each if you can, that way you find ways to set things up easier as well for end game to give you more the advantage if you are able to see certain set ups.
My first queening...
also nice job with all that, even though they could have taken the pawn sooner i saw but never did. he let you get too much advantage with that pawn and he should have took it out alot sooner

Thanks for the comments, everyone. The win was more a result of bad opening principles on his part than any real skill on mine, at least early. I am quite pleased with the endgame.
padman - I'm always, for some reason, nervous about moving knights to the outside rank. Is that a justified fear, or I have gotten bad information stuck in my head?

on move 8 instead of playing Ba3, which doesn't do much. You should have played a move like h3 followed by g4 to break the pin. You can't let your opponents knight exploit a hole like that. On move 9 you waist tempo, you should put your bishop where you want it, and not change your mind a minute later. Then directly after that your opponent makes a mistake. Your bishop pair wasn't amounting to much, he should have left his strong knight where it was and find a way to develop his problem bishop, then castle either way. Anyhow I could go over every move but I'm too tiered. Overall just make sure you think about how well each piece is placed and focus on improving their effectiveness. Try to avoid painful pins and you should be fine. :)

In this case, and it's not really that rare, moving your Knight to an edge file makes sense. The a- and h-files are not usually good long-term positions for a Knight, as you know, because they are farther from the center and influence fewer total squares (only 4 instead of their maximum possible 8 squares). But that doesn't mean you shouldn't ever use the edge squares as a planned route to get your Knight to somewhere else (like Nh4 en route to Ng6 , as Padman pointed out). You just don't want to get your Knight caught and trapped on the edge of the board unless that's the only way to save it.
Also, in this case, for quite a few moves your Knight could actually have caused you some potential damage by staying on f3 . For many of the moves, if Black had chosen to take your Knight with his g4 Bishop, the only way you could have recaptured the Bishop would have been via gxf3 , breaking up your King's protection and doubling pawns on your f-file. Black might have considered that worth giving up his Bishop pair. Getting the Knight off of f3 would have removed that potential problem for you.
--Cystem
I've lost a ton of games lately, but this one was my best win ever, as far as rating goes. I was also lucky enough to actually queen a pawn, which was, for me, a good feeling.
Any thoughts about improvements are welcome. Most of my games don't go this well, but I'm trying to be stubborn and keep improving.