Clarification for the cosmological view

Hello Rabbi,
 
The cosmological proof assumes that everything we have experience with has a cause that caused it, and from this we arrive at the conclusion that God is the cause of the universe, but He has no cause because He is not learned from experience.
 
But this assumption is strange to me because experience does not show that everything has a cause in the sense that something new was created, but in the sense that matter changed its form. Whereas with the universe, it is the opposite. Its cause is not a change in matter, but a creation that did not exist.
 
If so, it turns out that it is impossible to prove that God created the universe, but at most that He changed the form of matter that already existed. Does the Rabbi agree?