I am struggling at the moment

I don't know why I am really writing this. There seems to be part of me which says that I need to pull my head in and do this alone and another part who so desperately wants to reach out for help. I am really struggling. I'm not coping at all. For much of the day I've thought about all the reasons to die and there are hundreds. There is also one reason to live that keeps me here. I can't let down my oldest son and cut out his trip of a lifetime. He would have to come home and pick up all the pieces for everyone. I keep telling myself I have to hold on until he comes back and then I can let go but this keeps me waiting to die not choosing to live. I have a cold sore that now goes from the corner of my eye the length of my nose and it's slowly creeping across my face from stress. It started on Wednesday and each morning I wake to find more of my face engulfed by it. I am so tired. I am so sorry to write this and I know I'm so lucky to have friends on here that care. I don't want anyone to have to deal with this as it is so depressing so I started this thread as a way of saying that I'm not well when writing here and please don't feel obliged to read or respond.