My son is going on a date and I'm really bad anxiety

I know I posted and got a lot of advice to listen to my therapist but I'm just so anxious. My son is an adult and he lives with me. When he was younger I always noticed he was a little odd because he showed little to no remorse or empathy. In December he got diagnosed with Antisocial personality disorder (aka psychopath). He's never been intentionally violent. When he was a kid his pushed his sister off the jungle gym because she wouldn't stop following him and she broke her arm. He showed little remorse but apologized because I made him. He's never harmed animals or went out of his way to hurt someone. But my anxiety is there which is why I see a therapist and she told my most psychopaths don't turn into serial killers and that he can love. But I haven't been in therapy long so the anxiety is still there. My son has recently joined a dating site and I knew he was going to be eventually going on a date and that's today and I hate that I'm worried he will hurt someone. Because before I knew his diagnosis I would have never thought that. Now I think "Oh my god my son is gonna kill someone. He will go to prison forever and I'll not want to live". And I don't want to feel that way. I want to be happy when he goes on dates because he is usually here watching TV or something. I wish I could calm my anxiety.

Edit: So you can't actually medicare antisocial personality disorder. It's a personality disorder. There's no cure and even therapy is kind of tricky because if they don't want therapy then they use therapy to learn how to manipulate people and think they're getting better. The only medication some is ASPD might take is for mental disorders that may come with the personality disorder like depression and anxiety. My son is on antidepressants and that's to treat his depression but it doesn't do anything for ASPD. There's no pill that gives people empathy and remorse.

@Tori I mean yes he's aware I believe. How he took it was like "Oh okay". Which is how he takes everything in life. He just goes with things. We do not talk about it because IDK how to bring it up. No he's not in therapy. For therapy to even work for someone with ASPD they have to 100% want it otherwise they learn to manipulate their therapist into thinking they're getting better. Therapy also has never come up in a conversation.