My daughter has a terrible fear of going to school.

Thank you for sharing your case. Would you like to ask a specific question? From a pharmaceutical point of view, it is difficult to advise something, but it seems that the child should be taken care of by people who can help detect why the school arouses such negative emotions. Perhaps something bad is happening in it and it is worth talking to the educator, school counselor, but above all - with the daughter. If mental illnesses or emotional disorders are suspected, it will be appropriate to contact a psychiatrist and/or psychologist. I enclose a link to start a teleconsultation, perhaps it will be helpful: https://www.gdziepolek.pl/telekonsultacja