Should I confess a sin that I may have committed but am not totally sure? and should I confess sins that I have a hard time remembering if I committed or not? Thanks and God Bless!
only mortal sins must be confessed (and in number and kind)
no venial sin needs be confessed. they can be forgiven in other ways …though it is good and recommended to confess them…at least some of them…
if one is doubtful than one had at the time --a grave matter, full knowledge (sufficiant reflection) and full consent. then one is NOT obliged to confess it.
if one is scrupulous or has a tendency towards scruples or has scruples in some degree then it is advised that one not confess a doubtful sin either a doubtful mortal or a doubtful venial sin.
if one has finds himself confessing doubtful things all the time …then it may be best not to. or he may find himself with scruples if not already…
if one is does not have yet a good formation in the Faith --it can be very good to confes it and thus speak with the priest about it and get more informed or advice.
and of course if it is a sexual sin --but one is not sure if all the three aspects were met --it can be good to confess it and seek advice for this can be a tricky and difficult area and the matter in sexual sins is grave (lust, pornogrpic, fornication etc --things though against modesty are not neccesarily grave )…though one can not have full knowledge or full consent…
AND IF IT IS DOUBTFUL --AND ONE DOES CONFESS IT, ONE NEEDS TO SAY IT IS DOUBTFUL …FOR IT IS NOT CERTAIN AND SHOULD NOT BE CONFESSED AS CERTAIN WHEN IT IS NOT…
So what needs be confessed strictly?
if mortal -yes.
If venial – nope.
if doubtful “sin” either doubtful “mortal” or doubtful at all …nope.
if one is lax -or in need of advice etc (see above) and it is a doubtful ‘mortal’ sin – it can be good to mention it–but as doubtful.
if one is scrupulous or have a tendency etc that way-- and it is doubtful --it is advised not to.