Hope MeiMei is doing better now.

Parenting is the toughest job. I'm sure with your unconditional love for MeiMei, she will get out of depression eventually. Every child is different. For those whose children are healthy and doing well in school, God bless them. However, sometimes for whatever reason, some children are just not that luckly. No matter what they are, we as parents can't do anything but love them, encourage them and support them. That's what you are doing for MeiMei. Best wishes.