Why did I think things would be different?

I keep coming back to this place thinking that it will be different this time. That the people on here will respond to what I have to saying. Help me through what I am going through. Try to stop me from harming myself. Encourage me to continue being who I am and so on. But every time I am let down and disappointed. Things haven't changed. People take forever to leave a response and by the time they do most of the time I have decided to get off the site because I feel once again that the support group we are supposed to be has failed me. Don't get me wrong I know not all of us are that way. I just feel like I am slipping through the cracks because when I put my heart and soul out there no one says a thing. This is the only place I can go and put my true feeling out there, because no one knows who I am. The people in my life know half of me and most of them believe that my harming days are behind me because they don't realize that it is an addiction. If you try to explain that to them they just don't understand. Others don't know that I am Bi and they may never know that because I am not ready to be out there. But on here you all know that I struggle daily with trying not to harm myself and that I am Bi. I feel alright with admitting these things. But, on days like today when I check the message that I left and see that no one has responded since I put it on there, which was two days ago, I feel empty inside. I once again feel like why bother. I just wish that life would get better at some point.