I want to tell you that i have the exactly same problem.My mother is depressed,in a very serious condition.I dont know what i have,but it must be depression.She doesn't want to see a doctor and she acts like a 10 year old kid.She always pisses me off and breaks my nerves.I'm in pressure all the time and she makes the pressure rise.When i tell her something that irritates her,she starts ccrying and tells me not to speak to her again.She doesn't work,so she is always in the house.I see her miserable face every day.Yes i surely know how you feel and i'd like to say to you that if you need anything,i;m here to support you.And something else.Have you or your mother talked to an expert?I believe he is really gonna help you.Don't be like me.Try it.My parents think i'm joking.