Here's a theory. They think you are guilty of secret sin. You said you asked the elders what you had done wrong and they told you to think about it. They don't know what you did but they are sure that you did something. Your daughter was DF'd. The congregation was told that you voluntarily stepped down. If you had done nothing wrong, why would you have to stop pioneering. You must be "infected" with the same "spirit that caused your daughter to sin". Especially, if you were spending alot of time with her prior to her DF'ing. The elders see your suffering as evidence that Jehovah has removed his spirit from you. And why would he do that? You are doing evil things and are hiding it. (This is not what I personally believe, just a theory as to what the cong. may be thinking) Then throw in the jelousies that you mentioned....
I don't know why you are cleaning the toilets though.