score:11
You absolutely can recognize it in yourself. Not only can, you definitely should put effort in doing so -- it makes a huge difference in one's practice (from my own experience being a student).
Spiritual Materialism, (or we could call it Spiritual Accumulation or Spiritual Aggrandizement or Spiritual Indulging) is a tendency of samsaric mind to use spirituality (in its general sense, as an antonym of worldliness) as food for one's ego. Until the illusion of ego disintegrates, that is all the way until Enlightenment, ego uses all kinds of tricks to sustain itself, up to and including Buddhism.
Here are some of telltaling signs you are suffering from S.M. (you don't need to have them all, one is enough):