[nobamanomore]

so you believe ‘this is my body’
You believe in ‘confessing your sins to one another’?
You believe that the Apostles were given the ability to forgive sins?

[aMorePerfectUnion]

Good questions. Here are good answers.

so you believe ‘this is my body’

I believe it either was a metaphor Christ used of that specific point in the Passover celebration, or that it was true in that instance only.

You believe in ‘confessing your sins to one another’?

Yes, but not to the guys in costumes. Other believers.

You believe that the Apostles were given the ability to forgive sins?

No. The Apostles were told that if they forgave a sin, it had already been forgiven. Tenses in Greek make the passage clear.

Best.