Sizing help

Hi Everyone,

I bought a sizing kit and need some help on which size to get. A size 12 fits my index finger snug and during the middle of the night i had to take it off. But it is slightly big on my middle finger.

A 13 fits my index finger more comfortably but it is too big for my other fingers. I also read that sometimes a gen 4 ring is bigger than a sizing kit.

Should I go with the 12 or size up knowing that it will be too big for my other fingers?

Thanks!