How can i apply pin-up/cat-eye liner if my eyelids crease is so low on the outer corners?

Does anyone else have this problem? Ive watched tons of tutorials on you tube and cant believe nobody ever mentioned it. I beleive my eyelid crease comes down much lower aat the ends than the average persons. My liner goes just fine untill i get to the end where its supposed to fan out. Because of the crease getting in the way, the line looks completely crocked when in reality, its perfectly straight which is obvious when i close my eye. Please help, im so determined to get the pin up look!