Why cant i make my parents proud of me?

Hi i'm going to be a Sophomore in high school, all honors courses and in an honor course with seniors. I am also a swimmer and competed in a new England championship meet and got 6 in new england. Even though i have all of these accomplishments my parents have never given me one word of encouragement or a compliment on my success. in addition my parents are very offensive with me if i ever get a B+ on a quiz or homework assignment not even a quarter grade. I would also like to add i don't have any siblings so there is no other competition. please help the fact i cant get their respect or get them to be proud is very upsetting to me