Actually, we only symbolically eat His Flesh and drink His Blood. This is why He used bread and wine. He is The Bread of Life. His Blood is the only forgiveness for sin available to us. You're simply not understanding The Holy Scriptures, since you're not born again. If you were, you'd be able to see The Kingdom.
John 3:3
Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God.Christ and indeed Christians as well have the power on earth to forgive sins.
Whether is it easier to say to the sick of the palsy, Thy sins be forgiven thee; or to say, Arise, and take up thy bed, and walk? But that ye may know that the Son of man hath power on earth to forgive sins, (he saith to the sick of the palsy,) I say unto thee, Arise, and take up thy bed, and go thy way into thine house.
We are commanded to heal the sick, raise the dead, cleanse lepers, cast out demons and we can also forgive sins.
Matthew 10:8
Heal the sick, cleanse the lepers, raise the dead, cast out devils: freely ye have received, freely give.
I have freely received forgiveness, I'm certainly not going to be un-forgiving or refuse anyone's sins to be forgiven. All it takes is repentance and one can enter The Kingdom. Don't wait until it's eternally too late. The rich man wanted Lazarus to go warn his brothers about hell, but Abraham refused, because they ignored the prophets and now they also refuse to believe The One Who rose from the dead to preach to them to repent. Repent and believe in Jesus. You will NEVER be sorry.