You spent months,years or even decades as a Christian.You sacrificed everything for God,gave Him everything you had,you would speak every day for Him to others and would live as a person dedicated to God.What did you receive in return after all your efforts?Did He help you when you were in need?If yes,are you 100% sure that He was the one who helped you?Could you feel his Holy Spirit in your life?
P.S:This topic has nothing to do with the Org. I am talking exclusively about God and your relationship with Him