Which of the following sentences is correct?
I have a tremendous amount of respect in you.
I have a tremendous amount of respect for you.
The noun "respect" takes "for" for its indirect object, not "in".
(This is nothing to do with meanings: it is just an accidental fact about the English noun "respect", that has to be learnt along with its spelling and pronunciation).
So "respect for you".
Evidence: The iWeb corpus contains 127 697 instances of "respect for", against 7 011 of "respect in". Looking through the first page of examples of "respect in", I didn't see a single one where "in" introduced the object of the respect.