How can i make my rabbit like me?

i recently rescued a rabbit. i have had her for 10 days and shes not getting any friendlier. she will allow me to smooth her but she doesn't really enjoy it. she doesn't like to be picked up either and will growl if i try but when in my arms she will settle down. i know i haven't had her long but i'm worried she'll become unfriendly. also, i she will be friendly for a while but when i go back,she will be unfriendly again . if anybody has any ideas of how to make her more friendly please let me know. thanks