Once again, we disagree on this issue (ie. of re-confessing past sins by kind and number).
My advice (posted above) remains:
With regard to previous confessions, accept the absolution and direction you have received without revisiting the priest’s judgement. So long as you did not deliberately conceal a mortal sin then the absolution was valid, and, moreover if he has not asked for more information then you should not bring those sins to confession again, unless you recall some information which would have seriously changed that confession. eg. if one had confessed “adultery”, but failed to mention that they had moved in with their lover and been committing adultery frequently and over a long time, then (probably) one should mention that next time.
Priests are very experienced at hearing confessions and know how, and when, to ask questions if necessary. Moreover, in passing absolution they have ruled that your confession is complete with regard to the Church’s requirements.
Still, I usually recommend that people with doubts about previous confessions mention them next time they are in the confessional - not because they have to, but for peace of mind. Priests are always happy to answer questions about previous confessions, and it is part of their job in the confessional.
The following excerpts are from Pardon and Peace, by Alfred Wilson, OP, Imprimatur and Nihil Obstat, 1946, extracted from catholictradition.org/Christ/sacred-tribunal.htm.
- Some people worry because they are afraid that the confessor does not understand them, which is, as one author justly remarks, “paying an unmerited compliment to themselves and making very little of the confessor.” 
To such a one the confessor might reasonably say: “My dear penitent, you are not nearly such a unique specimen as you imagine!”
“No, it’s not that, Father. I don’t explain myself properly.”
- Of course not. Do we ever explain ourselves properly? How often do you ever say exactly what you want to say? God instituted Confession not for geniuses with an unusual gift of expression, but for ordinary folk like you.
In any case, it is not necessary to express yourself very accurately. When you go to the doctor with measles, you may and probably do explain your symptoms badly, but unless the doctor is very fifth-rate, he soon realizes what you mean, because he has heard all that so often before. Therefore, it is not unfair to say that if you imagine you are so difficult to understand, you either make too much of yourself or too little of your confessor.
If the priest does not understand, it is up to him to ask more questions, and if he neglects to do that when he should, it is his responsibility, his funeral, not yours: though of that you are most certainly not the judge. It is presumption and uncharity for you to decide that the priest is failing in his duty. Even if he is, provided you have done your duty, his omissions need not trouble you.
Jesus absolves, not Father So-and so. It would be a poor compliment to our Divine Master to presume that He would allow Himself to be baulked by human carelessness**. What the worrying type need is more faith in the realities of Confession and a prolonged meditation on the words: “Whatsoever you shall loose, shall be loosed.”**
If the priest is satisfied with you, then you ought to be satisfied, for remember that he is the judge, not you. Don’t usurp the confessor’s position and imply that Confession is worth next to nothing! Confession would be valueless if a quasi-infallible confessor were essential for its successful administration.
“But the priest may be mistaken!” Of course, he may. But remember this:
- If the priest is fallible, he is certainly no more fallible than you.** This desire to revise his judgments amounts to an unconscious usurping of his position. It is judging God’s appointed judge, and that is pride and want of faith and has no kinship whatever with zeal or tenderness of conscience. It is the self-opinionated attitude of private judgment. **
- Fallible or not, the priest is reductively infallible, because his judgment will be respected in heaven. “Whose sins you shall forgive, they are forgiven them. Whatsover you shall loose upon earth, shall be loosed also in Heaven.” Your judgment isn’t guaranteed anything, so you will be wise to relinquish it and leave judgment to the priest.
Remember St. Philip Neri’s wise saying: “No penitent was ever lost by obedience, nor saved by disobedience.” God instituted Confession for human beings, who are incapable of mathematical accuracy in moral matters, and therefore He neither expects nor demands mathematical accuracy.