I need help for dealing with my 18 year old daughter!?

My 18 year old daughter & I cannot get along or communicate anymore. She is in therapy for depression but I find myself walking on eggshells just trying to get through to her. I have kicked her out of our home at least 6 times for disrespectful behavior towards me (throwing plates/using profanity/telling me she wishes I was dead, etc. ). She always ends up coming back because my husband blames me for forcing her out of the house to live with friends that she can only stay with on a short term basis. She was supposed to be attending college on a full-time basis while living at home but instead is working full-time making good money that she blows on thousands of dollars of clothes and accessories. This makes her feel good but the next day she sinks into a depression again. We had been letting her use one of our cars to get to and from work but I took that privilege away because of the way she has been acting. She now gets rides to and from work from friends & she hates me now!