So I went to confession the other day. I was going to confess sins that I had forgotten and not intentionally held back, and the Priest told me that it wasn't necessary. I had learned before that I'm obliged to confess all unconfessed mortal sins.

I am scrupulous to begin with - and to make things worse, I went to confession with another Priest before Mass today and did not confess those sins which I was told not to at the last confession. Should I have obeyed that confessor that told me not to confess my recently remembered sins?

I am going to talk to a Priest sometime soon about all of this, but I figured it wouldn't hurt to post about it and get some feedback.

I am totally confused.

Generally speaking, sins that you merely forgot to mention, and did not intentionally withhold, are forgiven, and there is no need to "reconfess" them.  A general confession is another story, but it doesn't sound like that is what was going on here.

FYI

'If the penitent, through forgetfulness or for some lawful reason, without any blame attaching to him, omits to mention something which is necessary for the integrity of the confession, he is bound to disclose it on the next occasion; for, by the decision of the Council of Trent, each and every mortal sin of which one is conscious must be mentioned, that it may be directly remitted; hence if sins occur to the mind which have not yet been confessed, they must be submitted to the power of the keys. Thus Alexander VII condemned the proposition: Sins which have been forgotten or omitted in confession on account of instant danger to life or for any other reason, need not be mentioned in the next confession (cf. Prop. 11 damn.).'

- Theory and Practice of the Confessional

I. Mortal sins omitted without fault are and remain materia necessaria of  confession, or the objective duty of confessing them remains binding as before.

These sins are, of course, really forgiven, but, as we have already observed, only indirectly or per concomitantiam through their connection with the other mortal sins which have been confessed and directly remitted. In the Sacrament of Penance the remission of sins is effected by the absolution; but sins which have not been  mentioned do not directly fall under the absolution since, properly speaking, they are unaffected by the sentence pronounced by a judge who knew nothing about them.

Nevertheless the absolution pronounced rite et valide over certain sins is effectual because it is sacramental and because in God's providence no remission of sin takes place without an influx of sanctifying grace into the soul which presents no obex. Now sanctifying grace removes the whole reatus culpce mortalis and restores a man to perfect friendship with God and to his claim in the heavenly kingdom. Thus valid absolution produces sanctifying grace in the soul and consequently the remission of all mortal sins staining the soul, even those inculpably forgotten.

- Theory and Practice of the Confessional

Thanks for the quotes. I know that I'm supposed to confess all unconfessed mortal sins, but I just don't know what to do from here. I didn't tell the first Priest, "But Father, I'm obliged to confess them..." I went to confession once after that, and recieved Holy Communion.

I am just going to mention in my next confession that I have some sins to confess from my past life that I did not intentionally leave unconfessed.

I have GOT to get rid of these scruples. I've tortured myself all day.

One more question, and I'll leave it be.

Should I go to confession just to confess those sins I remembered? I'm asking because I made a confession after the time I was told not to confess those sins. If not, I will put this out of my mind until I need to go to confession again for other reasons.

In my N.O. days in the 1980's I was shocked that was considered mortal
sins before Vatican 2 were no longer mortal sins.
This was a Priest that was ordained in 1940.

I've gotten up, said my morning prayers, and am going to trust in Jesus' mercy and intentions. I abandon myself into His arms and will trust Him.

I'll confess these forgotten sins at my next confession. Please say a little prayer for me and for all those who suffer from scruples.

It's pretty common for priests to tell scrupulous folks to stop confessing past sins because they have already confessed the sins sufficiently and are forgiven.

You just simply tell the priest you're confessing to the details and he'll tell you what to do. Then you listen as he's the judge.