Father, Son, and Holy Ghost...Is Jesus in the middle of the Trinity?

NO!

There is only ONE person in which the Godhead is manifested, because the Godhead is in Jesus!

Godhead=the divine essence; deity; the fullness of God’s character and attributes. The bible teaches that there is one God (Deuteronomy 6:4). He is Spirit (John 4:24), and He has manifested Himself in flesh as Jesus Christ (I Timothy 3:16). He now baptizes us with His Spirit so that we can be the children of God.

There is ONE God who has revealed Himself as Father in creation, Son in redemption, and Holy Ghost in regeneration. He may manifest Himself in many ways, but He is ONE AND ONLY ONE being. Whatever roles or manifestations God has, they are ALL in Jesus (Colossians 2:9).

Trinity is also illustrated by a triangle. Which point of the triangle is in the middle?

Col. 2:9--This verse states that in Jesus dwells all the fullness of God, or all the fullness of the condition of being divine. This is a classic verse that Jesus is God.

Read it again because it doesn't deny there is a Trinity. This shows that He is God.

Colosains 1:12 Giving thanks unto the Father, which hath made us meet to be partakers of the inheritance of the saints in light:

13 Who hath delivered us from the power of darkness, and hath translated us into the kingdom of his dear Son:

14 In whom we have redemption through his blood, even the forgiveness of sins:

15 Who is the image of the invisible God, the firstborn of every creature:

16 For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him:

17 And he is before all things, and by him all things consist.

18 And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all things he might have the preeminence.

19 For it pleased the Father that in him should all fulness dwell;

He is God and the fulness of God.

Jesus is everything that the Bible describes God to be. He has all the attributes, prerogatives, and characteristics of God Himself. To put it simply, everything that God is Jesus is. Jesus is the ONE God.

They are each God - the Father, the Son (Jesus) and the Holy Spirit - they is no competition or disagreement among them - it's just the way man says it, sort of traditionally over the years.

i don't understand how that verse disproves a trinity. whether you say peanut butter and jelly sandwich or jelly and peanut butter sandwich, it's the same thing

There's no middle. It's more of a triangle, to put it in an image we can understand.