I think this all depends on the individual and the amount of trauma and work you are referring to. Speaking from my experience, I was completely and utterly devastated, disintegrated, dissociated for the whole year of 2018. I went to therapy the first time in 2017 and just about 9 months in, I lost and probably had some breakdown (suspicious because I will elaborate later).
All I did was eat, sleep, self care (all the things you noted and more), asked my husband to get his own therapist cause I wont be there for while (did not know for how long) and therapy...therapy and more therapy group (2 at one time).....and all I talked about was my trauma - no problem solving of any kind of the present life.
All these time, I changed multiple contracts at work, was back in school and studying, maintained luckily my marriage, dropped some friends but others got stronger but more focused on solo life than social life.
Was it worth it? Every penny I spent and every moment I spent on. I could not afford the life I have today if I did not go through that hardship.
so again, it really depends on the person, the situation, the support you may or may not have, and the amount function you can maintain in the middle of it all.
Not easy and when I look back my journal...I feel wow was I in psychosis or what? but yet, everyday I got up and went to work...and spent my full hour lunch massage or listening to music and crying in the park. Grief is a bitch!
I forgot to add and my dog...he was there for me all thin and thick....god bless his little heart.