First date after my x

So I've been single for two months but really only cut my x off a week if I'm honest. There's a really nice guy who wants to take me a in a date and I committed to go but honestly I'm freaking. I've never just met up with a guy before and I'm just worried. I feel nervous cuz I haven't touched any guy since my x and I'm nervous that I'll miss him while I'm with this guy. I know I need to move on from my x and I want to go out with other guys I'm just worried and having anxiety that it'll be awkward or I'll miss my x. Can someone give me some advice I'm not sure what to do