Should we believe in trinity?

Jesus is the mortal figure of a spiritual God.The Spirit of Jesus existed before the flesh of Jesus existed. John 1:1 says "In the beginning there was the Word (Jesus),the Word was with God, and the Word was God." The theory that there are 3 separate godly figures is false,There is 1 God that God is Jesus, the Son, Father, and Holy Spirit are all one and the same, they are all embodied in Jesus.