For latin, i can't remember actually. I just like how i can read old texts.
For ukrainian, i wanted to learn a slavic language; i was going with russian first, but ukrainian has more in relation with other slavic languages so it'd be easier to learn it, in case i ever wanted to learn another slavic language.
I'm also learning esperanto/hebrew very casually, since for esperanto i love the grammar system, and hebrew is very related to arabic so i understand a lot of it.
I wouldn't exactly say i'm good at it, but i'm pretty stubborn and keep trying. But i've actually memorized 5 writing systems, so at least i'm good at one thing :)