Why do I always feel like I wish I had a little sister and I don't understand why I feel like this and I don't tell people like my parents or brother because they'll just blow it off and say I'm weird or similar things?

I am age 57, mentally disabled just looking to answer and ask questions, I live on the East Coast of the United States of America I try to give positive advice and keep things for real and I expect the same treatment in return have a Blessed day hope God Blesses your day with the best of health, happiness, Many Blessings.