I'm afraid, my friend, it is you who needs to grasp the meaning of having the same sacrifice repeated over and over again millions of times without ever realizing that Christ suffered for our sins "once for all" and that there is no more need of a sacrifice. Christ told us to take the bread and wine "as often as you do it in remembrance of me."
Once I heard a Priest say, "Imagine a husband saying 'I love you,' only once to his wife on their wedding day. Wouldn't she want that renewed often?" He made a good point. The mystery of the Mass is like that, in a way.
Christ told us to take the bread and wine "as often as you do it in remembrance of me."
That's a big difference - with the Mass, during the consecration, It is no longer bread and wine.
Read about the Eucharistic Miracle of Lanciano. I think you'd find it interesting reading, if nothing else - especially the scientific test results.