Girls, hello ? I have maternity leave on January 20th, at the moment I…

Girls, hello ? I have maternity leave on January 20th, at the moment I work as a kindergarten teacher, I've already spent all my vacation ? It's really hard now, I'm nervous and I sleep on the go. My midwife isn't giving me sick leave, I wanted to sit until New Year and then extend the sick leave until maternity leave. How can I do that? Go see a therapist with a package???