The purpose of the Mass is the re-enactment of the Last Supper and that fateful day on Calvary (His Memorial) that is the focus, not the sermon (as occurs in your service) and that is exactly what we do . "Do this in memory of me" Jesus said - so we surely follow His command.
Having said that, we have a liturgical form of worship and as our brother utilyan said we have 3 readings from the Scriptures (OT, NT, and a Gospel) and it makes no difference if those readings are printed in a book called "The Bible" or they are printed in a book called "A Missal" - they are one and the same.
So how is a person saved Adonia?
Can any religious, loving person make a freewill conscience decision to reject Jesus Christ is the Son of God and still be saved?
What sayeth the scripture...
"Brethren, my heart's desire and prayer to God for Israel is, that they might be saved. For I bear them record that they have a zeal of God, but not according to knowledge"
What this Paul? They have a zeal of God?! How wonderful!
What is "zeal" ?
zeal
zēl/
noun
- great energy or enthusiasm in pursuit of a cause or an objective.
"his zeal for privatization"
synonyms: passion, ardor, love, fervor, fire, avidity, devotion, enthusiasm, eagerness, keenness, appetite, relish, gusto, vigor, energy, intensity;
fanaticism
"For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God" (Ro10).
Well, have you submitted yourself to the righteous of God? Or have you gone about to establish your own, or chose to follow those who have established their own?