How can Jesus be the son of god, the holy spirit/ghost AND God himself ?

Jesus is not the Holy Spirit, and He is not God the Father. He is God the Son, since God the Father caused a human mother to become pregnant with Him.

The Trinity is a mystery, but it's not "rocket science". Jesus is eternally begotten son of the Father, of one and the same divine, eternal, all powerful, godly "stuff". The Holy Spirit is said to proceed from both the Father and the Son. All three persons of the Holy Trinity are perfectly united in both divine essence and in charity. All three are fully God, for much the same reason that you are the fully human offspring of your fully human parents. Third grade math easily explains it: 1 X 1 X 1 = 1.

He isn't, dummy.  He's God the Son.  The Holy Spirit is the Holy Spirit.  The Father is the Father.   Three Persons in ONE God.

Whatever you "accept" is OK with us.  The Bible uses the words "deity", "divine nature", and "godhead" as descriptives of the Holy Three, Mt. 28:19, 2 Cor. 13:14.  The fact that this information is documented carries more weight than what you "accept".

Jesus is neither the Holy Ghost nor God.  St. Paul taught that only the Father is God.  Jesus is only one of the Lords, or lesser divine beings.  You have rightly pointed out that the Trinity is inherently self-contradictory.  What you haven't done is to disprove Christianity.

The Bible clearly teaches that Jesus Christ is Jehovah incarnate, the creation and begotten son of God. (who is Elohim)  Most Christian churches deny at least one of these teachings.

Jehovah is God Almighty the Creator and our Father. Jesus Christ is God's Son sent from heaven and born as a perfect human man, in his pre human existence he is Jehovah God's first creation, Colossians 1:15. The Holy Spirit is God's power/active force that he uses to accomplish his will. Jehovah God using his Holy Spirit, transferred the life force of his Son in heaven into the womb of Mary to fertilize one of her eggs, Luke 1:34,35, so that his Son could be born as a perfect man equal to Adam, 1 Timothy 2:5,6, before Adam sinned against God. Thus, Jesus Christ could pay the ransom sacrifice to buy back Adam's lost perfect life. Jesus offered his Father in heaven his perfect life that was taken from him to buy back Adam's life, everyone exercising faith in Jesus Christ and his ransom sacrifice can then have that perfect life applied to them so they can receive back the perfect life Adam lost for us. Jesus Christ paid the corresponding ransom as 1 Timothy 2:5,6 says. What is a ransom? It's the price paid to get back something that was taken or lost. What does corresponding mean? It means something of equal value. So, The life Jesus Christ gave in his sacrifice was a perfect human life to buy back a perfect human life, Adam's. Jesus Christ was not God, but God's Son, a perfect human man. He is called, the last Adam, 1 Corinthians 15:45,47.

He isn't. You completely misunderstand what, in Christianity, is called the doctrine of the Trinity. It maintains that the one Being of God subsists in the three uncreated, co-equal personalities of the Father, the Son, and the Holy Spirit. The Father is not the Son, the Son is not the Father, and the Holy Spirit is neither the Father nor the Son. Just read the baptismal account of Jesus (the Son made flesh) and you will see all three functioning together in unity but with their distinct roles and purposes.

The Creator is Father, Son and Holy Spirit, for all three equally created everything. None of the three were ever created, but exist from before creation started, and will live eternally in the Godhead.  Please grasp what the Trinity doctrine actually teaches before mocking it.

that makes no sense to you...... and everything has to make sense...to you, to be true?

*came back from morbid curiosity to see how this ends*

The Christianity story is...

Bible god sent himself as a sacrifice to himself so he could forgive us for being how he created us.

Jesus is NOT all of those things.

Jesus IS the son of God and God himself

and

that is possible

because God exists as more than one person.

In fact, that SORT of thing happens in the real world

- not with respect to earthly gods, but with respect to other titles

and for the very same reason.