Penises are scary and I don't know what I'm doing

Okay so I'm a virgin and I have had my very first experience touch a penis. It was cool. It was umm fine. I had no idea what I was doing and j needed more lib but I kinda gave him a hand job. Woooo

I've had really bad anxiety about this before but I'm was okay and it wasnt too bad. I need practice and tips so please help. Like how do I calm down? Where should I be looking? How do I know he's into it? How do I make it interesting?

I know this is going to happen again and I would like to improve please help :)