I have bipolar and my teenage daugther has ADD and depression. She is in a slump for the last month or more and can't seem to get out of it.
She went through a bullying situation were she was the victim, spends alot of time in her room alone or in closet, this is after school and in the evening when home. She spends to much time on her iphone and some of her grades aren't very good, but some are. Her and her mother fight some some but not as bad as it has been. She is having trouble listening and following directions and I don't handle her as gently as I should, she breaks down.

These are all classic signs of depression aren't they? Even myself I'm not sure when I'm in depression or mania so not sure how to regconize it in her.

My wife thinks if she is stern and yells at her, it will get her going the right direction. My wife says being kind doesn't get results, that yelling and agressive is the only thing she understands. I been through that with my wife as well with actions toward me when I'm in spells. I find myself being hard on my daugther about her grades or the things she does that don't make sense, afterward I feel very bad.

These are all classic signs of a spell of depression aren't they?

What can I do to help her out of this?

Thanks, everyone here has been very helpful to me.