What dating tips/advice do you have?

For me, who hasn't yet dated strangers I'll be meeting for the first time. I've only ever dated one guy since I was 22 and we were acquaintances for a while before dating. That relationship lasted 14 years. It's over now, I'm 36 and new to the app-based dating scene.

I have an upcoming date with this guy I've never met in person and I'm kinda scared.