I went on a silent retreat lead by two priests a few weeks ago. During a penitential service before Confession hours, the priest that lead the service (the other was absent) explained that it was going to be a different kind of Confession than what we might be used to; he wanted us mainly to bring a "rock" (i.e., something that was weighing on our hearts), though we could (should?) confess any sin that might come to mind as well. He told us that we would not need to say the Act of Contrition in Confession because we had already said a certain formula in the penance service (I thought this was weird, and I was planning to say a private Act of Contrition afterward).
The other priest apparently did not know about this arrangement; he didn't want a "rock", he wanted actual sins and the Act of Contrition as well (whodathunk, lol!).
The trouble is that I spent almost an hour and a half waiting in line for Confession, trying to think of a "rock" and the right way to explain it, and I didn't bring my cue-card for the Act of Contrition (I know it by heart, but my brain freezes when I have to say in the presence of a priest) because the first priest said we wouldn't use it. By the time it was my turn to confess, I was very nervous and angry (thinking does that to me :p). I hadn't written down what I was planning to say and it came out more intensely than I intended, plus I told the priest that I wasn't sure if I had contrition. Then of course I couldn't say the formula for Contrition without lots of prompting (the priest wasn't very thrilled).
All I confessed was "the rock", and it probably contained venial sin besides just being burdensome. I think I had contrition because I wouldn't have brought "the rock" if I didn't want to love God and amend my life, but, like I told the priest, I wasn't sure.
I received Holy Communion several times since then. Can anyone tell me if I made a sacriligious Confession and then followed it up with several sacriligious Communions? :(