Oh wow- it's like you're me. Same age, no other children, lost daughter in July, no stable relationship, both feeling pain, anger & bitterness. I'm sorry that we're both in this situation.
It does hurt physically and spiritually and sometimes when I realize that this loss will be with me for the rest of my life, I'm not sure I can do it. However, I do have some moments of feeling like I'm going to make it and I hope you do too.