Does size matter? 😂😭

So....my boyfriend and I. Very different. I'm very short, about 5 feet, while he's almost 6 feet. I would say I am quite a petite woman...
Then I saw his dick and I glanced at my vagina and I was like R.I.P.
I'm a lil teeny tiny girl and he's a tall (but skinny) boy......
Could it be possible that he is too big for me? I'm quite little, and his beautiful gorgeous penis is 7.5 inches when erect and we are still young which means he is still probably growing. Meanwhile I haven't grown in height since 8th grade.... rip