I don’t know what to do anymore

I’m currently living with my abusing boyfriend I want to leave but I can I have no where else to live my mom disowned and kicked me out two months ago I have money saved up but I can’t do anything with it I can’t rent a hotel I can’t rent a car I just turned 18 I’m never happy here I can’t remember the last time I was a truly happy my boyfriend just tried to kick me out again I need advice on what to do