This is a good example of a "creation myth" that might impress some primitive tribe on an isolated island in the middle of the Pacific. It's based entirely on analogy, and unfortunately, not even a very good analogy.

Actually, most of the "events" you mention have been painstakingly figured out to an increasing degree of accuracy over the last century by learned and thoughtful physicists and astronomers. Their "figuring" is based on observations repeatable by anyone, whereas your explanation is apparently based on imagination alone.

The true story, now robust but always in development, is actually much more beautiful and interesting than your imaginary one. You might start your more serious investigation into "gravity, light, atoms, and how it all started..." by checking out Weinberg's The First Three Minutes. There have been quite a few new discoveries since he wrote that in the 80s, but it provides a good foundation for finding out what contemporary science has come to understand lately.

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Everyone is entitled to his own opinion, but not his own facts.