Constantly feeling sad

It won't stop. I have this awful feeling all the time. I get points where I think what would happen if a car just swerved and hit me. It's stupid to say but I've been so down, this empty feeling inside, I wanna cry all the time. I'm all alone, my so called friend isn't around anymore when I need her the most she doesn't wanna know, I have no other friends. My ex broke my heart and left me with some really bad emotional damage. I constantly beat myself up. I continuously have all these negative thoughts about myself how I wasn't good enough for my ex. I don't know what to do. I can't afford counseling and the free counseling they offer has a long waiting list. But I miss feeling okay I miss not feeling sad all the time. It's been like this for months and I have no idea when it's going to end or even if it will