He's 'having a rough time (of it)'. = He's 'going through a rough time'. [=he is having a difficult time; his life has been difficult recently]
The project still has a few 'rough edges'. [=the project still has a few things that need to be changed or finished]
Don't 'be so rough on them' [=don't punish or criticize them so harshly] for making a mistake.
(..) I need some time to think. Just punch me in the face. Or smash my skull in the corner of your desk... Shit... That's a rough night. I do not know what I want... ... ever. I'm always confused and... she's right... all what I do is... (..)2013 Her