I agree with you whole heartedly, however it seems your contradicting yourself. First you say that there is potential, now your saying that it is logically impossible for another to exist.
(I hope your not finding me boorsih or obtuse brother/sister)
Don't worry, I enjoy discussions

When I said God has potential, it was on logically possible things. God forgiving people doesn't contradict logic - hence I argued why it is possible for God to be infinitly merciful while not forgiving everyone - due to potential.
Now creating himself, is logically impossible - their is no potential to do such things and hence being infinitly powerful does not equate to doing illogical things.