How will this even work? Virgin and big dick..

I posted this on the bigdickproblems page but unfortunately they haven't approved my post and this whole thing has been consuming my mind lately.

So I’m a virgin [19F] and he’s an experienced guy [20M] with a big dick. I can be fingered with 1 finger, 2 usually hurts me even if I’m really wet. His dick is 8 inches long, I don’t know how thick but it’s pretty girthy I think.

I just wonder to myself how will this even fit inside me. I know the typical advice of lube and lots of foreplay, but even still, I’m worried it will be super painful or not even fit in there at all. If he were to get it in, would he end up hitting my cervix and causing more pain again? Sometimes when he tries to use 2 fingers it feels like my vagina is being torn open. Which makes me incredibly apprehensive to have try to have sex also.

Are we not sexually compatible? Or is this something we can work through? Any advice would be greatly appreciated 😔