I would love to have a crease in my eyelids, but I'll just have to settle with what I've got or in this case what I haven't got .
「二重」は double eyelidですが、I would love to have double eyelid(s) / I wish I had double eyelid(s)は個人的に聞いたことないのでI would love to have a crease in my eyelidsにしました。
I would love to have a crease in my eyelids, but I'll just have to settle with what I've got or in this case what I haven't got もしくは I really wish I had a crease in my eyelids, but I'll just have to settle with the eyelids I was born with になると思います。
I've always wanted to have a crease in my eyelids, but I'm just gonna have to live without itも使えると思います。
二重整形 - double eyelid surgery
Crease - 折り目、畳み目、しわ
Settle - 本当は Xがいい•望ましいけど、Xは得られないから Yで我慢する/妥協する