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.
(..) You too, Rhodey. Hey. Wow. You guys... really look like crap. Must've been a rough couple years. Yeah, well, the hotels weren't exactly five star. Uh, I think you look great. Uh... (..)2018 Avengers: Infinity War