Anxious... 😅

I've been talking to this guy for 5 months, and we are like best friends already. We're really interested in each other and are easing into a relationship. We have heaps in common and we have both said that it feels right between us, like when we're official, it'll last. Only downside is that we live 4 hours away from each other... We've talked about it being long distance and how it would be okay for a while, and we've got trust. But I've got major anxiety because I was lied to and cheated on in my last relationship. I don't feel like I've got to worry about that with this guy, but it doesn't help that little incling I have in the back of my mind...

Anyone else been through something similar, or have any advice...?