Why does John keep identifying Simon as "Peter"? Why is Simon referred to as Peter or Simon Peter in Acts, The Epistles of Peter, etc? Do you have a Bible? Have you read any further than the Gospel of John?
Have you read any Gospel, later than that recorded in John, where Jesus speaks directly to Peter?
Is John Jesus? Why should I care what any other person than Jesus calls Simon Peter?
You should care because Jesus renamed Simon as Peter in John 1. That fact is in evidence as the other Apostles call him Peter as instructed by Jesus. Paul calls Peter, Cephas (Greek for Peter). Do you read the Scriptures as written by Jesus' Apostles and disciples? Do you care what Scripture instructs?
Furthermore, take a look at Acts 10. Peter has a vision where the voice from heaven, the Holy Spirit, calls him Peter. In at least two other verses he is referred to as Simon known as Peter.
If this isn't enough for you I don't know what is.