I used to question Jesus too. This is not uncommon. Then one day when I was visiting my cousin who is a nondenominational Christian who was just reading the Bible. I listened because I always listen to when someone reads it. All of a sudden it hit me! God can do ANYTHING! WHY CAN’T GOD BECOME MAN! (I capitalized that because it hit me like a wave.)
The muslims have a hard time with this one. And this is what I always tell them - God can do more than one thing at a time - God can be a man and God can be God of the Universe too! We are talking about the One who CREATED the Universe - All of the creatures, All of time, EVERYTHING! They just cannot get it. They don’t have a hard time following a very, nasty guy called mohammed - but they can’t give God enough credit that God can become Man!
To me it all of a sudden became as simple as that. Yes, I might be oversimplifying it all - but it works for me.
Well, now more so than ever I wonder how anyone cannot realize that Jesus was indeed prophesized. And you point to another verse from Isaiah which proves it.
Yes, Jesus is my Savior and I love Mary dearly too. I pray the rosary so as to ask her to ‘put a good word in for me and/or whomever I am praying for’!

I like the rosary since it reminds me of Jesus’ life and it calms me too.