i have alwas felt that most instrument training programs are set up wrong. they don't put enough emphasis on basic attitude flying. they tend to have a few hours of basic attitude and then jump into the approaches, and with the advent of RNAV it has gotten worse. if the student does not have a true understanding of basic attitude on the gauges and power management they get behind during the approach very fast. having your own airplane, even if it does not have all the radios for the checkride, gives you the ability to really master your scan and aircraft handling. an approach is just a process that is added to the ability to fly the aircraft precisely with only reference to instruments. practice a lot at flying the plane, speed changes, altitude changes, configuration changes, and all that while being distracted. if you master that, adding what is need to fly the approach is a lot easier.