I am going through something similar and the only thing that helps me is to realize that I have no control over other people and that I cannot force them to love me, I only have control over myself. Since I can only change myself, I just try to live day by day, trying not to worry about the past and to not look so much into the future... just living life day by day and trying to make the best of it. I have really bad days but I just keep telling myself that I cannot love someone that doesn't love me the same way... so far, thinking that way has kept me going. Good luck.