We have no clue according to the current 'accepted' gospels what Jesus did between going to the Temple at 12 and when he started his ministry at 30 apart from knowing he was a carpenter.
Plenty of time to travel and see the world.
stahp with the fake you
Take your pick
Sumerian/Babylonian/Egyptian
But it all comes down to you have been lied to
Jesus dying on the cross as a blood sacrifice is a death cult practicing blood magic