Nope.
Anyway you did not answer the question directly. You had just gone on the usual narrative and the usual handwaving with no objectivity.
Thanks.
Spoken by someone, who never read anything outside of scriptures.
Ok. Try reading some of the translations.
Here are some of the translations from the books in my collection:
Stephanie Dalley, Myths From Mesopotamia: Creation, The Flood, Gilgamesh, and Others, Oxford World's Classics, 1991 (revised edition 2000).
Epic of Gilgamesh (read Tablet 10 about the Flood myth of Utnapishtim)
Epic of Atrahasis (contain both Creation & Flood)
Epic of Creation (also known as the Enūma Eliš)
Andrew George, The Epic Of Gilgamesh: A New Translation, Penguin Classics, 1999.
There are Standard Version, where the most complete tablets were discovered at the Library of Ashurbanipal at Nineveh, including the Flood story of Utnapishtim (read Tablet 10).
There are also older tablets less complete or fragmented, from Old Babylonian period, Middle Babylonian period, and 5 Sumerian poems about Gilgamesh, including the mention of Ziusudra, the Sumerian version of Atrahasis & of Utnapishtim.
Thorkild Jacobsen, The Harps That Once...Sumerian Poetry In Translation, Yale University Press, 1997.
All Sumerian literature, that include the Story of the Flood (known to scholars as the Eridu Genesis), and different Creation myths.
Simon B. Parker, Ugaritic Narrative Poetry, SBL (Society of Biblical Literature), 1997.
R. O. Faulkner, The Ancient Egyptian Pyramid Texts, Oxford University Press 1998
R. O. Faulkner, The Ancient Egyptian Coffin Texts (v. 1-3), Aris & Phillips, 2004
E A Wallis Budge, Legends of the Egyptian Gods: Hieroglyphic Texts and Translations, 1912
Several Egyptian creation myths.
But if you don’t want to buy the books, or borrow books from the libraries. Below are some links from the website on Sumerian literature:
There are lot more, but it is late, so I am going to bed.
Follow these sources, or don't. I don't care if you want to remain ignorant.