I agree with everything Iggy said. Just remember that it's okay to feel a mix of emotions and it's okay to be happy on your wedding day - even though you are still grieving. Many prayers for your family and for the repose of your gramma's soul.
Good luck, people seem to do whatever they want. LOL. (My former parish was "in the round" as well and I think they just gave up educating people because the older people would genuflect, some people would bow, and others didn't do anything.)
I'd still like to get rid of these books. If you're interested, please send me a pm with what you're thinking about paying. I have a great ebay track record, and people here who have bought from me can vouch for me. updated list: --The Passion of Jesus and Its Hidden Meaning, Groenings --Wisdom from Modern Martyrs, Jeanne Kun, editor --Dethroning Jesus, Bock & Wallace --Reading the Bible as God's Own Story, William S Kurz, SJ --Praying with Pope John XXIII, Huebsch --Praying with Dominic, Monshau --Lord, Who Are You, Medina Estevez --The Words of Jesus: A Treasury of Wisdom --Songs From a Mother's Heart, Kennedy --Prayer of the Warrior, Michael H Brown --Vatican II in Plain English, volumes 1-3, Huebsch --Your Labor of Love, Agnes M Penny --God for Grownups, Virginia Smith --The Holy Longing, Ronald Rolheiser --The Spirit of Early Christian Thought, Robert Louis Wilken --The Imitation of Christ (hardcover, old publication, perhaps the 50s?) --St. Paul: A Bible Study for Catholics, Pacwa (used once but not written in) --Splendor of Sorrow: The Seven Sorrows of the Mother of God, Eddie Doherty