3 stages made me believe in Islam: 1-atheism

[Ashendant]

well i was born in muslim family. and i studied islam for a long time.
and i can list so many reason why we shouldn't believe islam. Quran contains so many conflicts. and it is obvious that writen by a human.
for instance, its also my favorite verse(bakara 180.) about heritage sharing. there is a mathematical error which wouldn't be done by today's elemantry student. (you know mathematic doesn't lie you can check it. ) If you want scientific mistakes you can check (tarık 7.) god doesnt know where sperm comes from.
(there are several mistake which i can reveal if you want..)
another huge reason is, it contains violence and terrifying punishments for crimes such as stealing or adultery. kill infidels wherever you find them!?!? thats cold..
And historically you can follow all stories in quran. some are taken from pagan beliefs and some are judaism. well.. most are from judaism
Actually allah himself is a pagan god and this can be easily proved by the way.
Muhammad's father's name was Abdullah and it means servant of allah. naturally muhammad's father cant be aware of his son's religion for he is dead before mohammad born. So allah is just another pagan god. allah was a common god among arab people before islam rise.

Are you saying that muhammad was also unoriginal?