I've said it before and I'll say it again: public Catholics need to be clean. If you did something that could lead to your being blackmailed you need to come out and admit it in public. Sooner or later somebody is going to find out and when we really need you, you will think about your mortgage and your reputation, and your kid's college fund (if you are a layperson) and let the Faith down.
There is an old Jamaican expression, "The higher the monkey climbs, the more of his backside he exposes." That means that higher you rise the more your private life will be scrutinized. Be honest with yourself before you start earning a living off of the Church or someone else will do it for you.