Just needing to vent

I’m going back to work after 4 years and I’m so unbelievably sad. My husband’s health has taken a huge turn and he’s no longer able to work. I have no other choice and I just feel terrible. I’m worried about my husband, this has been going on for months and his Dr’s are terrible and pointless. I’m worried about my son and how he’ll handle this change. I’m worried about the house and bills and what if I fail. And I’m just so sad.