You believe life came from non-living matter. By itself without intervention from a higher source, an intelligent one. Frankly, you also believe--don't you(?)--that the first form of living matter was a unicellular organism? Or is it that you don't really know.
I see it as likely that the first living thing was single celled, but I do not know that.
For example, it could have lived between layers of certain minerals with an RNA genetics and metabolism. You seem to think that pointing to a 'higher source' (whatever that means) and an intelligence solves all the problems, when, of course, it actually solves none of them and only introduces new ones.
Where did that source come from? Are there other similar intelligences? If so, where are they? If not, why not? What was the mechanism used for this 'higher source' to create life? How did it get the chemicals to do what it wanted?
The list goes on and on. But even worse, there is absolutely no way to test any of the ideas presented for their resolution. Was the 'higher intelligence' a great dragon that separated land from sky? Or was life started by the invisible pink uniform stomping her sacred hoof?
And more to the point, how do we tell? What *evidence* is there to decide? What evidence could there be to decide?