All alone

My husband just left for basic a week ago today and I'm not dealing with it very well at all. We have a 16 month old son. Hes gone for 5 months for basic and added on training schools. I've been so sad and depressed. I'm a stay at home mom so I'm Stu k inside this house all day and I go for long walks at night. I don't know how the hell I'm going to make it through 5 months of this. I'm scared and scared even more. He can't even call me yet so I'm even more worried and stressed out. I'm just so exhausted at this point.