I'm practising hard right now, but I've never drawn a hyper-realistic eye before. So I followed someone else's tutorial, took my time and ended up with this!
I'll talk more about following tutorials in a video soon, some people worry because they think it's cheating, but it's really not. That's what tutorials are for!
In the meantime why don't you get yourself a couple of pencils and start doodling, you could even try the fabulous tutorial that I used, I'll put a link below...and remember that being creative is one of the BEST medicines that you can use for your mind, body and soul. Happy doodling :-).
YOUTUBE LINK: https://www.youtube.com/watch?v=zqNZ9df0tho