If you believe in the following, then you are a Christian and will have eternal life. If you think that Jesus was just running His mouth and didn’t believe what came out of His mouth, you have problems with the Lord Jesus Christ, and need to take a serious look at your faith.
“I am the living bread that came down from heaven; whoever eats this bread will live forever; and the bread that I will give is my flesh for the life of the world.” The Jews quarreled among themselves, saying, “How can this man give us (his) flesh to eat?” Jesus said to them, “Amen, amen, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you do not have life within you. Whoever eats my flesh and drinks my blood has eternal life, and I will raise him on the last day. For my flesh is true food, and my blood is true drink. Whoever eats my flesh and drinks my blood remains in me and I in him” ~ John 6:48-68.
“Then he took the bread, said the blessing, broke it, and gave it to them, saying, “This is my body, which will be given for you; do this in memory of me.” And likewise the cup after they had eaten, saying, “This cup is the new covenant in my blood, which will be shed for you.
~Luke 22: 19-20
Why didn't you follow the "flesh and blood" discussion in John 6 with the communion account from the gospel of John?