how do i express femininity (i have no ways to do it)

essentially i cant wear fem clothes bc of my mum i cant shave bc of my mum i cant do makeup without having to either shoplift it or hide it bc of my mum i cannot do anything to express femininity and its genuinly eating me up every day when i come home from school or wake up its always "hello my beautiful boy" she says that every time and puts emphasis on the boy part. ive been out for 6 months (my dad isnt in the picture)