So I'm sixteen years old and I know I've got alittle bit of time until I become an adult but I am so afraid of growing up

My life has been filled with some really shitty role models and I pray I don't become like any of them but whenever I say I'm scared of growing up all the adult figures in my life go "oh well you'll figure your shit out" hell my own mother says this and doesn't even really care what I do or have any interest in what I want and I'm so lost because I left home recently aswell and I just need someone but no one is here so please someone ease my mind please