Matthew 26:29 But I say unto you, I will not drink henceforth of this fruit of the vine, until that day when I drink it new with you in my Father's kingdom.
Jesus said He was drinking from the fruit of the vine, not blood. Did He contradict Himself?
Jesus is the Vine.
Keep trying, you will eventually understand.
If Jesus were to ask you to eat His Flesh and drink His Blood. Would you?