Let's put aside the fact that you never explained how your prayer was answered....i mean you say you have been praying and then walked in the KH and your prayers was answered? ok?
In any case, it seems that for you it all boils down to the fact that Jehovah Witnesses preach door to door. And while this can't be denied, on what basis can you say that "Jehovah is OBVIOUSLY blessing the preaching work"? In what manner?
I ask because facts are facts. And the facts tell us, that in over 100 years or preaching, the total number of JWs is only 7 million. This is blessing? Even the mormons which also preach, have 14 millions members in the same amount of time, with less hours spent preached. Who's getting blessed?
Look around in your kingdom hall, and one by one try to identify who became a JW because of door to door preaching, and who became a JW because of normal informal witnessing (friends, family). Once you do this, you will realize, like me, that perhaps 2 out of every 100 JWs were actually formally preached to. Again, hardly a blessed work.
With that said, i wish you the best. Remember, no one is saying that God won't reward some JWs, but there is no evidence he will destroy everyone that isn't - on the contrary.
I can go live in Pakistan, and endure their rules and perhaps even have a normal life, raise a family, have a house and nice life. But wouldn't i want to have that same life, in a free country where i can be my own individual and express myself ?