You have made many assumptions and stated them as fact. I think you have done the bravest and most scary part, daring to question. But now comes the hard part…. if you want answers, if truth matters, you have a lot of exciting reading ahead of you.
If I may pick one point you made, that life can’t be made from dead matter. This is simply incorrect in fact we have made synthesised life from scratch even the dna. Humans have made living things not found in nature.
https://www.biochemistry.org/media/o3udboxs/7synthetic-life-booklet.pdf
May I humbly suggest some fantastic resources as the WT theocratic education’ has done you and your inquisitive mind a disservice.
Ray Franz- Crisis of Conscience - a JW GB members memoir on leaving the JW’s
G Orwell - 1984 - a book on how people are manipulated, it will ring true for you
Bart Ehrman - Lost Christianities. A bible scholars that will open your eyes
Bill Bryson - a short history of nearly everything - fun summary of science history
Yuveal Noah Harri - Sapiens - a book summarising human history and progress
R Dawkins - The Greatest Show on Earth - summary of biological science and evolution
L Krauss - A Universe from Nothing - summary of big bang and universe
S Hawkins - A Brief History of Time - amazing book on physics & the universe