You forgot that an adjective хуевый means bad, for example instead of saying "I am feeling sick" u say мне хуево, but as parent points it out, the adjective formed from the same root "охуительный" means exactly the contrary - мне охуительно is the russian equivalent of "I am super fine"

As you can see it is quite complicated, but even people who never went to school are the great masters of the skill