I need help

How do I tell my parents I have depression when my brother has depression, but they start worrying once he mentions him being depressed. They start to make him feel worse by saying stuff like "when you say that you make me worry" or "you just need to hang out with people or make friends". My dad doesn't believe my brother has depression even though he said he has had it for all 4 years of high school and is now a freshman in college who is struggling, due to the whole pandemic, to make friends. He isn't doing well and I try sticking up for him when my mom and dad say these things, but they just get mad at me because they say it's his fault. I completely understand what's he's going through because I am dealing with it too. I have a really good and loving friend group and I am happy whenever I'm around them. However my parents don't realize my happiness is temporary, I have cried myself to sleep almost every night, I don't really feel anything other then empty or hollow. The thing is I hide this from them because my dad will just say it's nothing and my mom will just say "do you want a therapist" or "do you want to be on medication" like she's angry at the fact that I'm not okay yet she doesn't know. She doesn't know that I would be completely fine with that because it would hopefully help me, but I can't say I have this. My parents will just say we told you not to hide your emotions, but there's no way your depressed. I want to get help and I know I need help, but I don't know how to get help because my parents aren't an option, my friends help me to the best of their abilities, and 7cups is a really good source, however I think if I had in person therapy it might be better. I just don't know. Can anyone help me with my situation?