First, Scruples and Sainthood is a phenomenal book I highly recommend. It helped me set aside almost all my scrupulosity. The basic idea I really attached to is that when we are scrupulous, we are seeking to be the means of our own sanctification, and we deny God the right to be that means. Basically God wants us to come to him exactly as we are and utilize him and his sacraments (especially Eucharist and Confession) as the primary means of the perfection process. By second guessing everything, repeating prayers or penances multiple times because we worry we "didn't do it right enough," or by focusing on the slightest of things and over analyzing their sinfulness, we are taking it upon ourselves to "get pure enough" BEFORE we approach God. Since I am a parent, I really connected with this, as I would never want my children to keep themselves from me because they worried I would deny them due to their faults; it is both my privilege and duty to help them THROUGH those faults, so they can learn and grow. So why would I try and deny God the same thing with me?
As for the second question about a priest being willing to do it anonymously for you, that would be a specific question and case-by-case depending on the priest. I am friends with multiple priests that would have no problem if you requested it and would probably reply, "No worries! I will unlock the church tomorrow at 1:15pm and I will be waiting in the confessional for you at 1:20pm." You would just need to ask before hand over the phone or by email.
I hope this helps!
Scruples and Sainthood is a wonderful book that really helped me eliminate probably 90% of my scrupulosity. I highly recommend this.
I’ve suffered from it and many many many Saints have suffered from it.
Have you ever read this book?
I just recently read the Book Scruples and the Saints. I found this book a bit helpful especially when they spoke about what constitutes as a sin.