Need confidence?

So a couple years ago I went on a date with this guy when I moved across the country, he was a friend of my cousin so I decided to go for it. He was a few years older than me, but I decided to go for it. He took me out to ice cream, and we hung out, but nothing ever came out of it. He went back to college a few hours away and we just stopped talking. Fast forward three years, we matched on tinder. And he is DROLL WORTY. He is so attractive. So we start talking again and I just got out of a two year long abusive relationship, so I’m not looking to date. But it has been a year since I had sex, if ya know what I mean. So we start talking, and our schedules always clash. We’re always working at opposite times. He comes into my work every so often to just say hi. And all my coworkers are always like “GIRL GET THAT”. Like he’s flawless. And we are very sexual with each other and open about not wanting to date and just be FWB. But I’m so nervous. Bc I am not SUPER experienced. I’ve only been with a couple people, and like I said, it’s been a year. I just need more confidence. Bc I know he’s into me, and he thinks I’m attractive. I am just scared I’d do something wrong. I’ve never had a friends w benefits.