Religion is meaningless in the long run. It does nothing for eternity. It doesn't matter how many holidays you celebrate, how much Bible, or how productive and law abiding you are. Those things are good and make for a peaceful and orderly society, but do nothing to gain eternity.
What counts for eternity is having forgiveness through the Jesus of the NT, not the Jesus that's the half-brother of Satan.
The Jesus you believe in matters. The half-brother of Satan Jesus whom the Mormons believe in,(as opposed to the God incarnate, the Father come in the flesh Jesus of the Gospels), can't save anyone. Only the Jesus who is God Incarnate can.
Anyone worships or serves or believes in a counterfeit Jesus is NOT getting to heaven because that's not the Jesus who fulfilled the Law and died for you and is able to save you.
Jesus called the Pharisees *white washed tombs*. They had the outside all clean and shiny and were rotten to the core.