Anxiety about new partner

So when I last had sex it was really painful and it turned out I had a Bartholin's cyst. And I’ve only ever had sex with 1 guy so if I’m to get into a new relationship or whatever I’m scared that it’ll be painful and won’t go in. Prior to getting the Bartholin's cyst it was hard to get in 1 time I’d say a few weeks beforehand. But i put it down to where I just hadn’t had sex in a while as it didn’t hurt when he was trying to put it in and I was wet it was only when I had the Bartholin's cyst that it was painful during sex and we stopped. Even a finger hurt. So now with my next partner I’m just wondering will it be difficult to get it in? I can masturbate but I can only use fingers it’s difficult to get anything in hence why I’m so anxious - and that’s with lube.