It is not necessary to tell the priest the exact words you said in cursing or in bad conversation, unless he asks you; but simply say, Father, I cursed so many times.  Do not speak too loud in the confessional, but loud enough for the priest to hear you.  If you are deaf, do not go into the confessional while others are near, but wait till all have been heard and then go in last, or ask the priest to hear you someplace else.

(5) Listen attentively to hear what “penance” the priest gives you, and say the act of contrition while he pronounces the words of absolution; and above all, never leave the confessional till the priest closes the little door or tells you to go.  If the priest does not say at what particular time you are to say your penance, say it as soon as you can.

When you have, told all your sins, you will say:  “For these and all the sins of my whole life, especially any I have forgotten, I am heartily sorry, and ask pardon and penance.”  Listen to the priest’s advice, and answer simply any question he may ask you.  If you should forget a mortal sin in confession and remember it the same day or evening, or while you are still in the church, it will not be necessary to wait and go to confession again.  It is forgiven already, because it was included in your forgotten sins; but you must tell it the next time you go to confession, saying before your regular confession:  In my last confession I forgot this sin.  Of course if you tried to forget your sins your confession would be invalid.  It is only when you examine your conscience with all reasonable care, and then after all forget some sins, that such forgotten sins are forgiven.

Never talk or quarrel for places while waiting for confession, and never cheat another out of his turn in going to confession.  It is unjust, it makes the person angry, and lessens his good disposition for confession.  It creates confusion, and annoys the priest who hears the noise.  If you are in a hurry, ask the others to allow you to go first; and if they will not be contented and wait, and if you cannot wait, go some other time, unless you are in the state of mortal sin.  In this case you should go to confession that day, no matter what the inconvenience.  Spend your time while waiting in praying for pardon and sorrow.  Never keep the priest waiting for you in the confessional; pass in as soon as he is prepared to hear you.

192 Q. What is the examination of conscience?  A. The examination of conscience is an earnest effort to recall to mind all the sins we have committed since our last worthy confession.

“Worthy confession,” because if we made bad confessions we must tell how often we made them, and whether we received Holy Communion after them or not, and also all the sins we told in the bad confessions, and all others committed since the good confession.  If, for example, a boy made a good confession in January, and in confession in February concealed a mortal sin and went to confession after that every month to December, he would have to go back to his last good confession, and repeat all the sins committed since January, and also say that he had gone to confession once a month and made bad confessions all these times.