Im so depressed

So me and my mom share a room. So we are both on our phones and I’m silently crying hoping she doesn’t notice. Im crying because i don’t have any privacy. She then sees I’m crying and saying whats wrong and I sad nothing it’s fine. And then she says no tell me and I say I never can be alone I have no privacy. And the she gets mad at me. What the fuck she gets mad at me because I’m sad that I don’t have privacy. I can’t even have privacy to cry.