I have been truly disturbed for days after reading some of the threads on here where people are describing their sins in far too much detail. I’ve had to completely avoid some threads because of it.
It has always been my understanding my entire Catholic life that we should not go into detail about our sins with people. Saying you committed a sin against purity is enough. If you feel a need to go into greater detail than that, then best to have a private discussion with your pastor who is trained to handle such sensitive issues. Even when meeting with your pastor, he does not want to hear too much detail either unless it is absolutely necessary!