I don’t know ANY former Catholics who are suffering in any way from leaving the church. Catholics always say people aren’t catechized correctly but that’s bull, too. I’m sure there are many reasons why people leave, but suffering because of it, nah.
Removing oneself from the presence of Christ, in my opinion, would be quite painful. Several years ago, I contemplated leaving the Catholic Church but that would have entailed turning my back on my Lord and Savior and shutting Him out of my life. I could not do that.