what you posted is perfect from the Catholic Faith teaching:
God the Son has always existed, He was without beginning or end and in the fullness of time He became Man, so He is fully God and fully man.
Jesus is the only Savior of the world, He alone is the mediator between God and men, His Sacrificial death on the cross reconciles sinners to God. Mary is a created human being, who became the Mother of God.
Let's just keep it at that. Now let's all go save some lost souls!
**God the Son has always existed**
The phrase “God the Son” is not found in the scripture. The phrase “the Son of God” IS found in the scripture. The Son made mention that he came from the Father; and that he is in the Father and the Father is in him. The Father is omnipresent, so this is no problemo.