About to become homeless

Hi there , so after my previous post I have decided to end things with my partner . He doesn’t make me happy , hasn’t for years . Makes me question everything I do and criticises me at every opportunity. Now I’m going through cancer and treatment for cancer and how he has been been me during this time has made me re-evaluate everything and i told him I don’t want to be with him anymore . Thing is I live in his home and he wants me out . We have 3 children together and the boys have decided they want to stay with there dad , my daughter isn’t sure . That thought alone is breaking my heart but I can’t do this no more , had 6 weeks of silent treatment from him I cannot and won’t take anymore . He tells me I havnt even got a teaspoon to my name and I have no savings so essentially I’m going to be homeless . What do I do ? I don’t want to go into a hostel but is that my only option?Will I end up on the streets and if so will I have to stop my treatment because I don’t have a car or anything . I feel so stupid I gave up everything for that man , my career, my friends , myself . He knows I have nothing and he loves that fact . Please help with some advice because it’s making me feel so stressed