What do you mean, “Such is not the case”? what Edmundus means, by “revisiting” (in this context), is to question the validity of those particular past sacramental confessions, making the penitent concerned that perhaps it was not a “true” or “complete” confession, not efficacious, etc. What jongenaro said was that he/she ““had thought that (even if number wasn’t mentioned) his/her” sins were forgiven.” The poster’s sins have been forgiven, precisely because the pentitent was acting within the full knowledge known at the time. It’s when there’s deliberate withholding of serious sin that the sacrament is being abridged.
We are not permitted to consciously lie about anything in Confession.
The term “revisit” is used by confessors to discourage a pentitent from developing scrupulosity. We are not to return to a previous confessed moment in time with the belief that an accidental piece of information left out (such as a detail of frequency or even the unwitting omission of a serious sin) has invalidated that confession and thus “revisit” that particular confession. The way to handle it is, at the next available sacramental occasion (mortal sin cannot be committed by accident, so there’s no urgency to rush in), the penitent announces that, along with recent sin, he wishes to seek pardon for (mention) a previous sin that was forgotten. That sin has actually already been forgiven, even though it was not mentioned, as long as there was not a deliberate lie (sacrilege). This is traditional Catholic sacramental theology, and should have been a basic element of this poster’s catechesis, which unfortunately it wasn’t. It is also a basic element of any college program in essential Catholic theology.
A “general confession,” in Catholic theology, is not a retun to the confessional to update the priest on frequency of recent sins confessed. A General Confession is a life review. Often it is engaged upon when a revert is returning from a long absence from the practice of the faith. A confession and a general confession are one and the same when someone of any age has First Penance in the Church, as it is a review of all sins known to have been committed since Baptism.
A sacrilegious confession (sometimes known as “a bad confession”) does require a return to the confessional as soon as possible. It would involve an admission of a mortal sin deliberately omitted in a previous confession. Until that is revealed, that confession moment is invalid, and any communion engaged in is sacrilegious. Hopefully, that was told to jongenaro during CCD class!
The situation with jongenaro does not require a general confession or any such thing. He/she should just remember next time to provide the confessor with more details as to frequency, because such frequency makes the confession complete and allows the priest a fuller picture for counseling and suggestion of penance. The poster has not made any invalid confessions, at least in his description.