A.
You know it will be very difficult / for you to respect yourself /unless / you are proud / of your work.
B.
You know it will be / very difficult for you / to respect yourself / unless / you are proud of your work.
C.
You know / it will be very difficult for you/ to respect yourself / unless / you are proud of your work.
D.
You know it will be very difficult for you / to respect yourself unless /you are proud of your work.