"Só eu mesmo para pensar em picanha a semana toda".
Context-wise, it could be:
This is so me, to think of eating sirloin steak all week!
Some people would think I am crazy, because I have this crave for eating sirloin steak all the week´s meals.
I think that to have this craving for eating only sirloin steaks would make many think that I am weirdest person, of all people.