How is Sola Scriptura incoherent?

For example, Jesus has a God …

Nuda scriptura is scripture alone. Sola scriptura looks at the writings and the traditions, with the writings (source of the traditions) having greater relevance.

A Trinity was first mentioned as G-d, His Word and His Wisdom, by Theophilus of Antioch.

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Considering that the traditions stem from interpretations based off the writings, sola scriptura would be the means to test the coherency of the traditions.

So, how does that affect the Athanasian Christian doctrine of the Trinity?

John 20:17] Jesus said to her, “Do not cling to Me, for I have not yet ascended to My Father; but go to My brethren and say to them, ‘I am ascending to My Father and your Father, and to My God and your God.’ ”

Why can't flat-Earthers create an agency like NASA to explore Earth to prove it is flat? What's preventing them from doing so?

But it was not until the efforts to create a uniform Christianity at Nicaea that the concept became the accepted tradition, to create a universal (catholic) interpretation of the writings.

But if you read it through the filter of the traditions of a Trinity, you will miss it (like many miss Jesus telling Mary about Mary’s G-d being Jesus’s G-d). That is incoherent.

The New Testament identifies Jesus. Literally, spelling it out in Acts 3.

Is it wrong that I picked to be a Christian (as a teenager/14-year-old) even with knowing all of the information about other religions/atheism?

Later, Tertullian would lay the foundations of the Trinity.