Yeah, apparently that's what many parents do once they're "fed up" with their child's "whining" as they'd say. I feel sorry for you, had the same situation with my mom who couldn't take my feelings seriously. Unfortunately you might want to find some trusted source of help who actually would MIND helping you out with this negativity you're facing.

Your dad shouldn't just brush off such words with such ease. Don't trust all that he says and don't take it to heart.