verysad and confused

I've been quiet..I moved out of smll rural Qld. Left my partner, my dog and all my belongings behind. Now with my son & gf on Gold Goast. I went Psychiatrist whom said I need therapy for the rest of my life..ok so now I'm here I am not happy, people, traffic, noise and a nightmare dealing with Clink. I cant move from my sons as I cant find a place to live, rent to expensive and I cant stay here either as this was just a short term arrangement. I feel sqeezed and trapped and everyday I cry and lock myself in bedroom. My partner rings everyday, our conversations are short as he thinks I'm going back to the rural town. My physiologist says no u cant go back. Each time my major depression lasts for 6 months then I am in remission for 6 mths in which time I feel ok with living in isolation in Qld. I just do not know what to do. I also have PTSD from the violence and abuse as a child. My partner is not violent as he uses pot and has done for 45 yrs. I feel this is all to much to work out but I got to move out soon from my sons. Help Help. Can anyone give me some ideas please.