What do you think?

Let's just get to the point... So, i think there's something wrong with me? Or not? Maybe I need some opinions from you. I don't know why I feel weird or annoyed when a man tells me something. Like what should I do and this and that. I have a younger brother, for example, he tells me to "lock your room door if it's late at night", "don't go too late and far". Bla bla bla. My feelings are weird, I'm like "don't tell me what to do",but i feel bad if i feel like that., but I didn't say anything so I just said yes. Anyway, I am the first born and only daughter. My brother is younger than me but his body is bigger than mine, much bigger. Sometimes people misunderstand, that I am his younger sister, whereas I am his older sister.