I think I know how you feel, and I also would love to be relieved of such a burden.
Unfortunately, I do not have a solution for you.
But as others have said, I guess its about the state of mind. You can will yourself into belief you dont want one I guess.
One time, things were getting better for me when for some time I was seeing one girl in a dream. She was always different, but always the same, and with seeing her on almost daily basis, I was not so sad to be alone while looking at girls and being saddened by the fact that i can not be with any of them.
I dont recomend my solution, but maybe you can have an imaginary girlfriend
I´m about to try it on my own if I ever get to learn lucid dreaming
But seriously, I´m sorry for the hardships you are in. I hope it will get better for you, whether if you find a girl to be with you, or stop wanting one.