Fingered by FWB

I feel very frustrated, I tried to let my FWB finger me for the first time ever. I’ve never fingered myself bcs I don’t enjoy it myself (painful also) even though I make sure I’m wet. Now my FWB used lube and I was wet and still it hurt a lot. So we stopped. I’ve never been penetrated before… what should I do? I want to gt over with it actually and just enjoy PIV.