Question

How could this sentence be corrected to cut our fluffy words? "i really just want to go to the store to buy groceries in order to be be prepared for the week."?

Answer 1

remove inverted commas,put capital letter before starting any sentence and question mark

I really just want to go to the store to buy groceries in order to be prepared for the week.

Answer 2

The statement given in question is wrong in terms of phrasing and grammar so I am giving correct answer of this question.  

“I really need to go to the store to buy groceries for the week.”  

Sometimes students write wrong sentences because of lack of knowledge of grammar so that you should learn grammar.