Why do I always write í instead of ý?
Don't worry, -i vs. -y will keep you occupied for a loooong time. It takes years for school kids to get it all right.
Thanks for the hint. Stupid question: Will learning Czech get me closer to learning Slovak?
It will help, basics are very close, but slovak has some grammar things totally different.
dayyyyyuumm. how about russia? do you know?
I assume the basics are pretty close, there can be some understating between Czech and Russian speakers, but I don't think you could have a fluent conversation just by kearning one of them
Save it for the plural. :)
Does man and men different in czech? Is there any word for men in czech?
Absolutely, singular words have their plural counterparts and you will meet them soon in future lessons. The plural of muž is muži.