I'm so very sorry you are having a hard time, and feeling hopeless. Even if/when you know cognitively it's not hopeless, necessarily, feeling hopeless to me seems like better evidence than anything I can tell myself.

I hope some of the feeling passes and you can feel some better soon!!!

If/when you meet the "right guy" it will then be obvious that all was not hopeless but of course you don't know for sure until/if it happens.

I thought I would never get married but then fell for a guy a work. I was the one who spoke first, in person. We had 24 good years until he died. So you never know. On both sides actually -- who will come into your life and when they will leave.