worldview and selfconcept are tightly interwoven. you can hardly reflect on starving kids without it being introspection, because of this mirror effect. oh yeah you could blame monsanto [whatever] for starving kids and get all technical for a moment. but if you just look at how you live like you are not responsible, while your being is aware that you might as well be one of them (hard to ignore, i would think), then that's already introspection, in my book. you would have to ask yourself: why do i support this system, then? how am i depended, what holds me back?
im not an expert on introspection, but i would say what slows it down the most are fixed self concepts that imply fixed questions, for instance the idea 'i am social phobic, as described by the DSM V' might lead to the question 'how can i become someone without social phobia' (see how that includes a comparison, looking at you through outside eyes, you haven't invented either the concept of a social phobic nor the concept of someone outgoing, but you assume that it's relevant to your internal life and that's a distraction) when the question should really be: what do i really want, what motivation is it, that makes me act the way i act (ie avoidant) and what views cause this motivation? notice how the views may very well be unreflected worldview issues. not saying the worldview is wrong. maybe i just don't want to become part of a system that is evil. but i would like to be outgoing and have one night stands. but i have made a choice. and then dissociated the choice again. confused much? i have to differentiate my worldview to become clear about my motivations. maybe one nights stands don't imply support for the system, maybe they do.
self and world can't be separated, they are one, in your mind. the self organizing priciple (the self) isn't attached to your internal representation of the physical body. your self concept / your identity eventually extends to include family, friends, your species, all sentient beings. i am human. i am humanity! as such i introspect. not only as such. the self is like an onion. each of the layers (nanook < human < sentient being) are equally real, they functionally co-produce how i operate in the world. atheistically speaking, your true self is your whole brain and that includes the world.