Hey! Well that company sure did the job and it seemed professional. The guy who I've hired for $600 has 4 years experience in marketing and I could tell he knew what he was doing but it didn't work. He used Facebook Business.
I feel that those advices you have given to me won't be of (much) help to me.
I honestly don't know but may be my book isn't so good. It seems I've made a mistake in "getting profits from your games". But I did give at least some good advice in the book, based on my experience. That part seems to not be in my experience, I'm sorry if I've done something bad.
Actually, I have posted on Quora about my ebook and it has sold. Maybe your ideas/advices for me aren't so bad after all!!