? I really feel confused because the position of 한번 몸에 밴 버릇이나 습관을 in this sentence.
As i know in normal : S + O + V or S + A .If i divide this sentence in two parts: In the right, i have "버리기가 그만큼 어렵기 때문에" .
So 버리기가 is subject, and 어렵다 is adject. If i guess that, 한번 몸에 밴 버릇이나 습관을 is the object of 버리기가, and they change the position of this to before subject to stress it : the habit that you falled into/ that becomed a part of you is so much difficult to beak.
Sorry for my english, please excuse any errors on my part. Hope you understand