Not sure where to start

Ok first of all I dont want this to sound like a sob story but it probably will. Also I wasnt sure where to put this but I feel that depression is the general cause and most prominen issue so here we go I guess. These last few weeks have been very bad for me. Basically my mother had been cheating on her girlfriend for a few years. Her girlfriend is extremely controlling and stresses me out any time Im near her. Not a big fan of her. We had been planning for the past year to move in with the man my mother was with. I thought he was really nice and I was excited to get away from my life here. Well he has cancer/brain tumor (which we knew) but apparently he will pass in the next few weeks. He had been delaying to move and changing plans a lot before he got really sick. We planned on going to Maine then Tennessee. Eventually my mother and I went house hunting in Tennessee and found the house we wanted. He was supposed to buy it and give my mother a trust fund so she could retire so she quit her job. Things started going wrong. My mother had suspected him of lying about everything. I dont know what to believe anymore. So now Im not going anywhere. All of my plans for the future are gone. My mom told me she considered suicide. I really liked him and thought we could build a happy family and I could finally get out of here. I thought my mom would finally be happy. Now I just feel stuck. It feels like my whole life was ripped out from under me. (Continued below)