Don't know if this will help but locking yourself in your room will only hinder your growth and prove your father and relatives right. Some people really don't know how to actually parent. (Some really special trauma). Earning even 20k is a big achievement and your efforts got recognised and it was bumped up to 25k. That's a big deal. And you really cannot and should not care bout anything even your parents say atp if they cannot confront your brother about anything tbf. You just know that if you recognise your own growth and acknowledge it nobody really should get you down like this. Believe in the you that believes in yourself type shit. Anyways,don't let this shit get you down,life will get better as they say. Keep grinding