So are you now arguing that Jesus is not a divine person (and therefore is not God)? You really must be confused!
God anointed and appointed His son Jesus to be the saviour of mankind. That is why there is no other name than Jesus (Yeshua) by which we can be saved. God's appointed person for saving mankind is not a greater god than Yahweh; he is obeying God and doing His will.
Jesus saying that he existed before Abraham was born does not make Jesus a greater god than Yahweh. It does not "contracdict", or break the commandment to not have any other Gods above and in preference to Yahweh.
As you pointed out, quoting Acts 4:12, faith in and obedience to Jesus is the only way that we can be saved. To quote Jesus' full sentence, and a bit more (John 5:21-23):
"For as the Father raises the dead and gives them life, even so the Son also gives life to whom he desires. For the Father judges no one, but he has given all judgment to the Son, that all may honor the Son, even as they honor the Father. He who doesn’t honor the Son doesn’t honor the Father who sent him".
Peter said (2 Peter 1:17), 'For he received from God the Father honor and glory when the voice came to him from the Majestic Glory, “This is my beloved Son, in whom I am well pleased”'. So God honoured Jesus, and as our judge, and as somone who can give life (or not) to whomsoever he pleases, so therefore we should honour Jesus. If we don't honour Jesus then we are rejecting God's plan and His appointed person for saving us, so we would therefore also not be honouring God.
Genesis 1:1 says, "In the beginning, God created the heavens and the earth". John 1:1 says that the logos (Jesus) existed in the beginning (of God's creation), and that the logos (Jesus) was with God, and that the logos (Jesus) was a god (Greek word theos, meaning a mighty one, a god). As the Revised English Bible translates it, "and what God was, the Word was", i.e. they were both powerful spirit beings. Just because God existed before He started His creation (obviously) and Jesus also existed before that creation (obviously, because Jesus performed the creation at God's instruction - Colossians 1:16), that does not mean that Jesus is God - that is illogical. Your (and many other people's) confusion stems from the illogical translation "the Word was God".
Or unless, as the Scriptures repeatedly say, Jesus was God's only begotten son, his most beloved and firstborn son (see 2 Peter 1:17 quoted above).
You continue to misunderstand that (IMHO)!
Exodus 3:14) God said to Moses, “I AM WHO I AM,” and he said, “You shall tell the children of Israel this: ‘I AM has sent me to you.’”
So God initially says that Moses should tell the Israelites that "I am" (hayah, meaning to be, become, come to pass, exist) has sent me. Then he says:
(Exo 3:15) God said moreover to Moses, “You shall tell the children of Israel this, ‘Yahweh, the God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you.’ This is my name forever, and this is my memorial to all generations.
So rather than Moses just saying "Hayah has sent me", God tells Moses to explain who He is by saying "Yahweh, the god of your fathers" has sent me. So God says that His name should be Yahweh, not hayah, and that Yahweh should be His name forever.