Do object oriented programming. On the way you'll create systems of objects and with ongoing experience you'll also learn to move the abstraction layer around.

Do object oriented programming. On the way you'll create systems of objects and with ongoing experience you'll also learn to move the abstraction layer around. I think while doing this for some time it's a little easier to think about other (real world) problems as systems and you may find parallels between software development and this real world.