Have you read this book? Cause in chapter 20 it mentions Jesus working with Joseph as a carpenter before the 18 years that are not covered in the modern Bible.
Also Matthew 13:55 frames him as the carpenter's son
I wasn't there for any of it, so I cant tell you exactly what was what. But when I pray for wisdom/understanding and books like this fall in my lap I give them a shot, and judge them by the fruit they bear in my consciousness.
Not trying to debate or attack your beliefs