You are really going through a lot with parents that at best seem to not be helping and also seem to be unnecessarily and even purposefully hurtful. It is a shame that you could not continue with the therapist you were seeing. Whether this is emotional abuse or not, it is certainly something that you should not have to try to get through without professional assistance.
Perhaps you could reach out the your former therapist, some trusted adult at school or your pediatrician's office to put you in touch with a therapist that you could start seeing without your mother's permission. Be aware that therapists, pediatricians and school personnel are most likely mandated reporters in Michigan, which means that they are required to report circumstances such as yours (suspected abuse or neglect) to child protective services (CPS).
A report to CPS would likely result in an investigation and could result in your being placed in foster care, if the CPS worker believes that you are being abused or neglected and your mother does not cooperate with them to correct the deficiencies in her parenting. See the link below for the phone number for Michigan's year-and-a-half old statewide hotline number for reporting child abuse or neglect.
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No one would say that these comments from your mom are correct or productive but what good will the answer to this question do you? Your father is out of the picture; do you imagine that you life will improve if CPS removes you from your home and puts you in the foster system? The first rule of therapy is that the therapist has no power to change someone else's behavior -- it is all about you. If it makes you feel better to hear that the things you mentioned are the wrong thing for a parent to say, you have my vote along with the others. But you have to be goal oriented with your actions. I would not involve CPS in anything unless you have thought it through very thoroughly. 14 year olds are often not what would-be foster parents are looking for...
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