Oh my!
Dear Parents,
I need a vacation so I'm off to visit Mickey. See you in 2 weeks! 
Honey, you need a break.
Sorry you are dealing with all of this. It sounds like a nightmare.
I would sit on that letter a few days and really think hard about sending it. Perhaps prioritize the most important things and strive for 1-3 that are on your list.
They will Never read the whole thing I can almost guarantee it. It's too much all at once.
Sigh.. not sure what else to say.