The Hebrew form of the name Jesus means "Jehovah is Salvation; Christ is the equivalent of Hebrew Ma-shi'-ach (Messiah) which means Anointed One; another thing to bear in mind is that Jesus and Jehovah are not one. If no man has seen God at any time why were people able to see Jesus?
"So the Word became flesh and resided among us , and we had a view of his glory, a glory such as belongs to an only-begotten son from a father; and he was full of undeserved kindness and truth." John 1:14
"No man has seen God at any time; the only begotten god who is in the bosom position with the Father is the one that has explained him." John1:18
As for God dying, Jehovah is the Alpha and the Omega; he has no beginning or end.
"I am the Al'pha and the O-me'ga, says Jehovah God, "the One who is and who was and who is coming, the Almighty." Revelation 1:8
The holy spirit is Jehovah's active force; "Now when all the people were baptized, Jesus also was baptized and, as he was praying, the heaven was opened up and the holy spirit in bodily shape like a dove came down upon him and a voice came out of heaven: "You are my Son, the beloved; I have approved of you."
Use your powers of reasoning and carefully read the scriptures. You will realize that a lot of things that you thought to be so, isn't true. I hope I have helped you, and may you continue your journey learning about Jehovah God.