Doctor said she could go home now?! How?

After my last two post, my mom has been in hospital for 6 days now after she had car accident tgat caused her mild to moderate brain bleed. After CT scan, Her brain stopped bleeding and all blood started to dry.

Doctor said she could go home now?! But she can’t even sit up without screaming in pain(her clavicle is broken). She can’t walk yet. I’m so stressed right now. My uni is about to open and i can’t concentrate on my work.