Is "iuvenis bene habet" incorrect because this is reflexive, so requires the "se"?
Yes, the sentence should literally mean "the young man has himself well" and without the reflexive pronoun it would be "the young man has well", what does he have?
It's not clear when use "se" :(
Yeah I got that one wrong and many others because of the fact that they dont specifically say when and where to put it
I take it there is no word for feel in the same sense as in English. I otherwise take this as "the young man has the good (feels)".
how about "... bene agit."?