Catcher in the rye questions please help?

hi im having trouble wqith thequestions they are, name a few of the dissapointments the hoiden encountered scince he caqme to NYC, who are the people in the novel that holden likes?, Why does he like these charecters and dislike others?, How does holden feel about the world in which he lives?, Are his reactions to the world negative or positive, explain. , Although his motivs are never clarifiedmr antonelis carresing holdin has an intense affect oin holden, why is this act so devastating, wgat is the symbolic significance of the red hunting hat. PLease help wqith these questions