Are you talking about depression or frustration? From the way i understand depression, it starts with the feeling of unworthiness then goes up to frustration from there now someone slips into depression at least that's what i think. Is this something that comes every other day, or occassionally. Depression is a condition that has been growing inside you without your knowledge, but from what you have written it seems like it happens when you have done house chores and writing. Maybe your just frustrated and not depressed, because depression will make you loose interest in doing stuff, you will always want to just be alone. Maybe you need to check around you and see what gets you frustrated, and work on it you might just be shocked that you don't feel frustrated any more.