I’m so very glad you wrote. I’m sure it’s frustrating that you can’t get through to your mom. She may be thinking that this is normal 13-year-old girl emotionality. She may not want to believe that her little girl is in so much distress. On top of that, you act normal a good deal of the time so your mom and other people may think you’re just into drama.
I can’t make a diagnosis on the basis of a letter. For what it’s worth, I don’t think you’re crazy. You do need to see someone who can help you sort this out.
I suggest you start with your school guidance counselor or school nurse. They can often be helpful in talking to a parent so that a student gets services. Your family doctor can also help. At 13, it may be that you have a hormonal imbalance that is contributing to your up and down feelings as well. Please do get that checked out. If you are physically okay, the next step would be a mental health evaluation and perhaps some counseling to help you deal with your stormy emotions and the tension in your relationship with your mother. You are motivated to be “normal.” You’ll do well in counseling.
I wish you well.