I deeply regret rejecting a guy I went on one date with
It was not about him - I just have very little experience in dating and got super anxious and scared of going on a second date with him. So 2 days before I told him we shouldn't see each other but it's just because of me being stressed. It was impulsive and the next day I apologised, we talked for a while and I asked if he maybe wanted to meet again but he didn't want to. Which I totally understand and he did nothing wrong, he doesn't owe me anything. I was the problem here. The case is he was actually all I wanted in a partner (despite some concerns I had after our first date) and I deeply regret it. We had same hobbies, he was very open and caring, respectful, i found him physically attractive... I fear I won't find anybody else like this or just anyone interested. I can't cope with ruining an opportunity to have a good connection because of a stupid wave of anxiety. What can I do to feel better now, any ideas?
IMPORTANT: plz don't suggest therapy or meds, as I try/tried those. I'm in therapy for 8 years now and on medication. Just advice about this particular situation.