There are different ways of broaching the deity of Christ, but here's a simple, neglected tack: what's the difference between the Son of God and a prophet of God? Here's one crucial difference:
i) Prophet: believe me
ii) Jesus: believe in me
We should believe a prophet of God because he speaks for God. We should believe his message.
But we don't believe in him. He's just a messenger. Indeed, it would be idolatrous to believe in him, as if a prophet is an end in itself, or object of faith.
Of course, we ought to believe Jesus, but it goes beyond that. We should believe in Jesus. Take the classic "Believe in God; believe also in me" (Jn 14:1).
Notice the symmetry. Like Father, like Son.
In popular American parlance we sometimes say "I believe in you," which means "I trust you" or "I have faith in your potential."
And certainly the trust element is part of how Scripture defines saving faith.
But that's not what Jn 14:1 means. Rather, Jesus is the object of faith, the object of worship. Not a means to an end, but the destination.