Ja zawsze chcę jeść
"I don't want to eat right now." This would be the same thing wouldn't it?
Should work now.
Is the adverb (in this case, 'teraz') always before the second verb or is possible to put it at the end of the sentence?
It could be at the end, it would give stronger emphasis on it.
"I don't want to eat it NOW, but generally I am going to eat it!"