Hadriel,
I know you're sincere in wanting to know. We are sincere in trying to explain.
It's possible initial life was Created and it still evolved by undesigned biological evolution. However such a supernatural Designer isn't a solution to any of the questions you've asked at all.
And I still fail to see how our lack of understanding of how life began influences or even invalidates our knowledge of how existing life evolved.
And what if we apply your line of reasoning wrt biological evolution to the other side of the story as well:
We don't know where a Creator/Designer/First Cause came from, nor have we any evidence of its existence. Without Creator nothing can ever be created. Hence I can't accept the creation story.
This together with your reasoning means that lacking any good explanation of how it all started, we neither evolved nor were we created, ergo we can't exist. Yet we do exist, even without a clear explanation how life began.
I'd love to have a conversation about the science behind what or how evolution began
Then let's discuss abiogenesis and chemical evolution, without needlessly conflating the discussion with biological evolution or supposed supernatural entities ;-)
BTW 'life' is an artificial, invented label. Where do we put it? At what specific point lies the boundary between 'just' a chemical process, and at what stage can we call this process 'alive'?
Jehalapeno, I'd upvote your comment much more if I could...