My brother knows about my cutting?

my brother knows i cut myself and now its a problem cuz i have to hide it from him and from people aat school...after i knew my brother knows about it im begging to scratch off the scabs and im begging to cut higher up on my aarm..he also thinks i do it just to empress people and he thinks i want to be called emo n all...i dont do it to empress people..the only reason why i do it because it helps me feel better about myself ...what do i do now uz now im doing it in diff places..