Reword it less offensively. You ask her to not speak offensively to you while doing the same in return.
Also calling the GB buffoons and "tight pants tony" etc. will detract from your point. That is all she will see, will gloss over the rest and probably not even finish it.
It it may have been cathartic to write, but re-read it with her eyes. JWs are VERY sensitive to criticism of their leaders and religion. It is counterproductive. Try rewriting it with a more loving but factual tone, you will get more mileage out of it guaranteed.
Or delete it. That's a better option than sending what you have there.