Everything Kalni says is true. You need to fight this depression. Maybe go to a landscape garden and walk around smelling the flowers. Or just a walk in a nice nearby park. You do need to get out of the house and be around people. Call your friend instead of writing to her, and just talk about stuff. Try to find things to laugh about.
Are you working? If not, then try to find a job doing something, even working at the grocery store or a department store. You need to get out and be around people. Maybe Petsmart or another pet store is hiring. A lot of those stores, like Walmart and Home Depot have good benefits.
