I think if you read the entire story in John about Jesus nearly being stoned to death by the Pharisees and the previous I AM statements, Jesus is referring to himself as being the I AM in the old testament. It is pretty clear.
Actually if you read the entire book of John it is an testimony of Jesus being " The Angel of the Lord ". The figure that was identified was being god and being with god.
It is best to understand the undelaying themes ( deity of Christ ) of the book of John before pretending you are some expert in biblical Greek and Hebrew. Don't fall for the JW trick of bait and switch , isolate a piece of text and then quote out of context.