I read and heard in more than one article/book/video that painter of the original picture that is in the Divine Mercy Shrine was a freemason who didn't convert bit commited ѕυιcιdє.
I agree with Ladislaus, and to try to accept and normalize giving and receiving Holy Communion on the hand.
If that sister nun ever existed, she was iliterate to write that diary. Maybe father Sepocko was a main figure in creating and promoting that diary and images.
I know that "spiritual father" of all fake seers in Medjugorje was a friar Tomislav Vlašić who impregnated a nun and was suspended. He later created a new age cult involving aliens in Italy, but he was excommunicated in 2020. not earlier.
And despite all condemnations of bishops, forbiding preaching and pilgrims, and that fact also, still many people come there.
People talk about conversions and comfessions, but many priests in normal times would be suspended or even defrocked, laicized for that behaviour.
They are accepting modernist, "feel good" religion, not hard, true teaching of the Catholic Church.
Almost all Medjugorje believers also believe in Divine Mercy devotion, apparitions, etc.