I don’t really know how to do that, I have trouble with eyes too
If you want to make the eyes more of the anime-ish type add more details and make them look shiny, maybe use the blur feature to give the eyes an ombre effect? Try using many different shades of the same color on the eyes, this enhances them and gives them a bright feel
I’m not exactly a good artist but I try… here’s one that I did where I experimented on the eyes, I’ll add more examples later
And don’t say your art looks bad, I love it!