I wrote this:
"I know you asked me hundred of thousands times why on earth I wanna meet you, why on earth I wanna talk to you, why...what's good it'll bring to me? Trust me I gave it a thought million of times, but every time without coming to any solid conclusion"
Is the expression "hundred of thousands times" and "million of times" sounds fine and natural?
No.
"Hundreds of thousands of times"
"Millions of times".
I know you asked me hundreds of thousands of times why on earth I want to meet you, why on earth I want to talk to you, why ... what good it will bring me. Trust me, I thought about it millions of times but each time I couldn't come to any solid conclusion.