Jesus is the God-Man and throughout the Bible the Blood is quintessential for salvation. You are a false teacher.
You can't possibly even be a 'real' Calvinist.
A "real" Christian in respect to Christ, not Calvin..... he is dead asleep .
Throughout the bible blood and water are used as metaphors in various parables to represent the pouring out of His Spirit. The unseen work of the lamb of God slain from the before the foundation of the world . The one time demonstration using blood which Christ said did not profit for nothing was used as a one time outward demonstration.
God who is not a man as us remains in His Holy unseen place as our invisible God. Some false teacher say his flesh and blood did profit as if God was a man as us.
Many therefore of his disciples, when they had heard this, said, This is an
hard saying; who can hear it?
(or offence saying as in who who would want to hear it... put on some ear plugs) When Jesus knew in himself that his disciples
murmured at it, he said unto them,
Doth this offend you?What and if ye shall see the Son of man ascend up where he was before? It is the
spirit that quickeneth; the flesh profiteth nothing: the
words that I speak unto you, they are
spirit, and they
are life.But there are some of you that
believe not.
(no faith) For Jesus knew from the beginning who they were that believed not, and who should betray him.And he said, Therefore said I unto you, that no man can come unto me, except it were given unto him of my Father.From
that time many of his disciples went back, and walked no more with him.Then said Jesus unto the twelve, Will ye also go away?Then Simon Peter answered him, Lord, to whom shall we go? thou hast the
words (not flesh and blood) of
eternal life.John6: 61-68
Find the spiritual meaning hid in the parable "drink my blood" then you can continue to walk with Christ .This is unlike those who hoped literal blood without the unseen work of the Spirit should profit more than a outward demonstration. From that time many of his disciples went back, and walked no more with him
"Hint" the spiritual meaning for "drink blood" is found in the Old testament