I am a theist, what do you think of my proof for God existing?

[Arkilogue]

Ok, some arguments (in "prose") against the Creator God (as defined by most Christian theists):

God cannot create something out of absolute "nothing". In order for God to have created anything, there must have already been some preexisting material from which the created things were made. This means some portion of reality independent of God has always been. Conclusion: God did not create all of reality.

God cannot timelessly create. In order for God to have created, time must have already been. Conclusion: God did not create time.

God cannot timelessly exercise his mind. In order for God to have created anything (including time), he must've either exercised the divine mind to plan the creation or it was spontaneous. However, if there was no time prior to its creation, then there was no act of exercising the divine mind prior to creation (for no act can occur in the absence of time). If somehow it was possible for God to spontaneously timelessly create (hint: logically speaking, it's not possible), then God's act of creation was a spontaneous act. Conclusion: If it must be argued that God created time nevertheless, then God mindlessly created the created portion of reality.

It can be argued that, logically speaking, (1) God did not create all of reality, (2) God did not create time, and (3) even if God somehow created time, then God mindlessly created the created portion of reality. This is no different from a mindless entity that has the capacity to randomly generate things within a form of reality that's always been. Therefore, the Creator God is not logically necessary. Conclusion: God cannot exist as the Creator.

The material that God carved the universe out of was God's own body. Absolute infinite mass. Matter taking up all space forever in all direction.