Do you all know your venial sins? do you recognise them straight away?, I'm way too casual about them and I fear I don't even recognise them as such.
Answers to the two questions: No. I was thinking about this reality this morning -- that is, why it is true. For myself, it's about the passions. (Apparently, according to the sermon I mentioned, as well as many other sermons I have heard and spiritual material I have read, our failure to conquer our passions lies at the heart of our failure to progress.)
Everybody is "governed" by different passions; my worst ones are not necessarily shared by people who have, or have had, similar difficulty advancing, now or at one time. But no matter, it's less the category of passion than the attachment itself, which -- because it sweeps in like a silent storm when we're being tempted -- blinds us with its power and speed.
In addition, there is the reality that we grow accustomed to reacting/behaving in certain entrenched ways that are so habitual that they appear to be synonymous with our personality, but that's only the devil's deception -- to convince us slyly that we're merely of such-and-such temperament, and thus we (and others) should accept a weakness which leads us into sin, but a persistent bad habit is not a mere neutral quality of our inborn personality.
Many people don't know that the gentle writer and saint, Francis de Sales, was beset by a prominent tendency to the capital sin of Anger. But rather than surrender to it and excuse his proclivity to outbursts, he worked on it rigorously, to the point where he mastered temptation so successfully that even when others tried to rouse his anger, they failed.
Fr. Ripperger and many others speak about how God allows us certain defects not to prevent us from growing, but precisely so that those defects become the opportunity for our sanctification.
So back to your question, diaduit: I recognize my venial sins way, way better when I have any director, let lone a great one. He used to take the blinders off, at every session. Quite humbling and quite effective.