Make sure you told your confessor the
whole story.
Then sleep for at least a full day. No caffeine or nicotine. Maybe some natural calming agents like wine, herbal tea, melatonin or valerian. Sleep will turn your mind off and allow you to acheive some clarity.
Roscoe's herbal remedies don't work for everyone and can make scruples worse.
And for some extra insurance I will

for you.