Hello, I liked this letter until I came to:
"From the October 7, 2023 attack on Israel to August 3, 2025 - 9th of Av  - is 666 days."

Six hundred and sixty six is the number of the name of the beast/the number of a man, not the number of days between two events.

Rev 13:17  and he provides that no one will be able to buy or to sell, except the one who has the mark, either the name of the beast or the number of his name. 
Rev 13:18  Here is wisdom. Let him who has understanding calculate the number of the beast, for the number is that of a man; and his number is six hundred and sixty-six. 

Cheers