Scared of Being Seen at Home

Assalamu alaikum. I’m a young woman living with my parents in a Muslim-majority country. Our living room has two huge windows facing the neighborhood, and my family often opens them in a way that I think lets outsiders see inside. Since I don’t wear hijab at home, I feel exposed. It’s like anyone passing by can just look in. I’m the only one who wears hijab in the house, and sometimes it feels disrespectful when others act like it’s no big deal. They say I should relax at home, but the door might be open, or male cousins could come around, and I’m supposed to just be okay with it? I’m not perfect-may Allah forgive us all-but I really want to do more good than bad. This is stressing me out so much. I can’t move out because I’m still in college and under my parents’ care, and I’m grateful for that, but this issue really bothers me, and I think my feelings are valid. I’ve tried talking to them, but they just tell me to "take it easy" and "stop being paranoid." What would you do in my place? I’m scared I might be sinning by being seen without hijab by non-mahrams. What do you think?