And, if so, how do I do that?
I have been single for over 11 years. I fucking hate being single, especially at times such as Christmas, but I am absolutely bloody useless at relationships.
If there were something else I had been trying to achieve with no success over a period of a decade or more - such as learning to drive, learning a musical instrument, a sport, or a foreign language, or completing a degree - I would definitely have given up by now. If I had been teaching or helping someone for that long without them achieving the desired outcome, I would have told them to give up.
I have tried every possible way of meeting people. I have tried 'not looking', because by rights I should then have met someone immediately. 
I have tried not thinking about it, but that is a little like trying not to think about food, or sleep. It works temporarily, but it's impossible to avoid triggers for very long.
I am full of anger, frustration and despair. I am not planning to top myself imminently, but I do know exactly how I would do it.
Has anyone else gone from desperately wanting to find a loving partner to genuinely making peace with the prospect of long-term, probably permanent, singledom?