I'm 17 (been driving for a year) and have already been in a few small fender benders. Two resulted in no damage to either cars, one scrapped the paint and costed me $400. All of these had to deal with parking. One of my biggest problems is I don't know the dimensions of my car that great (which is pretty big, a Ford Crown Victoria). I'm not completely stupid though and do have a pretty good idea where my car is but it could be a lot better. Also when parking I usually have to repark because I'm usually a little into another parking spot.
I have friends that can drive like experts and can be comfortable while doing it, which is how I wan't to drive. So I was wondering is there any tips on better learning my car dimensions, parking, or just some general tips.