Welcome CC. I echo the sentiments of others here in that I hope you find an outlet for your thoughts/doubts. It is a safe, welcoming (most part) and friendly place with all types of characters.
I too would recommend you read 'Crisis of Conscience' and 'Captives of a Concept' - they were the tipping point for me. Or just go and read Animal Farm - that book tells you everything you need to know .
If you research many faithful believers' life stories and experience the tragedy of their circumstances, I defy how you can see this religion as harmless. As well, it is an organisation that steals people's potential in more ways than one: Talent, career/financial prospects/family relationships/the pleasure of having partners/children (you may be disagreeing here but think how many times the organisation has advised singleness and childlessness for the 'sake of the kingdom'). Consider the blood issue and how many lives could have been saved, the list goes on.
However 'deeply entrenched' you are, you will in time come to see that that isn't a good enough excuse to continue to support such a toxic organisation. How many solid examples of a pedophile's crimes would you need in order to sever a friendship with one once you found out his true nature?
I'm not trying to be provocative here or make a personal attack but hopefully to make you think about the seriousness of giving your allegiance to something that has caused and continues to cause so much pain in so many peoples lives.
You may think you can't survive without it but you have no idea how much happiness is really possible once you are free.