You really are taking a very dismal, all-or-nothing, defeatist attitude. I think you need to start looking at the things you are grateful for and count your blessings every day. Do things to boost your self-esteem and enjoyment of life in general. And know that there are plenty of people out there who would be happy in a childfree poly relationship. You will meet them if the energy you project is a positive, uplifting one. But if you are so down on yourself and negative about life, no one will be attracted to that.
Hot chick in the city.
Oh, oh, can't you see? Love is the drug for me.