How Did a Fisherman Write the Book of Peter?

Questions about how a fisherman could have written the book of Peter, why people say that not mentioning the destruction of the temple indicates an early date for the Synoptic Gospels when John doesn’t mention it either, and why one should think the Bible is special.  

• How did Peter, being an uneducated fisherman, write the book of Peter, which seems levels above what someone with no education could do?
• People reason that the Synoptic Gospels should be dated earlier than the destruction of the temple since it isn’t mentioned, but John doesn’t mention it either, and that book is dated AD 80–90.
• Why should I pay any heed to the Bible when it’s just one of many ancient “holy” books? How can I trust it is special?