My mans d*ck is TOO BIG

Okay, so I know this isn’t a common complaint from women but it is for me. Sometimes when we have sex, it’s very painful and I hate giving him head because it’s like sticking a huge cucumber down my throat. I feel like it’s juvenile to break up with him for that reason. What should I do to make the sex more enjoyable? Any tips? (No pun intended)

Update: we do foreplay, but maybe not enough. And lube tends to not work well with my pH. But I will definitely let him know when to slow down.