You should know that in the presence of sin, God is not there. So when Jesus was made to be a curse on a tree, for a brief moment God's presence was not with Him.

Zechariah 9:9 (Rejoice greatly, O daughter of Zion; shout, O daughter of Jerusalem: behold, thy King cometh unto thee: he is just, and having salvation; lowly, and riding upon an ass, and upon a colt the foal of an ass.) Notice here the king posses salvation and will be lowly in character.
Exodus 15:2 (The Lord is my strength and song, and he is become my salvation: he is my God, and I will prepare him an habitation; my father's God, and I will exalt him.) The king has become salvation and note that during Zechariah there was no king in the land of Israel, and the only one proclaiming to be King after his writings was Jesus.

Hebrews 9
25 Nor yet that he should offer himself often, as the high priest entereth into the holy place every year with blood of others;
26 For then must he often have suffered since the foundation of the world: but now once in the end of the world hath he appeared to put away sin by the sacrifice of himself.
27 And as it is appointed unto men once to die, but after this the judgment:
28 So Christ was once offered to bear the sins of many; and unto them that look for him shall he appear the second time without sin unto salvation.
The law never made a way for offerings not to be offered continually. Jesus came to fulfill every law and then become a sacrifice to get rid from the requirements of animal blood and other things. That by calling on upon the name of Jesus, his authority can blot out our sins and free us from all transgression of the law.

Lastly that word does not specifically mean virgin no. However that word is only used in the Bible to signify a woman that has not yet been given to marriage or consummated that marriage. https://jewsforjesus.org/publications/issues/issues-v09-n01/almah-virgin-or-young-maiden/

So a virgin for all intensive purposes. And lastly, Isaiah said in verse 7 His name would be called Immanuel. Then in verse 8, the name of the child is Mahershalalhashbaz. Your reasoning is bad all the way around. Keep coming at me though, Im sure one way or another, you will cry out to Jesus to save you. I hope that its while your physical body has life though.