I've had super super thin hair my whole life. I'm glad I don't have super thick hair but my hair is so thin I can't do anything with it. Is there anything out there for someone with super fine hair..
Dying your hair might make it thicker. Or try taking biotin supplements, maybe. Or maybe look into extensions. My hair is also thin (my ponytail is soooo tiny!) but the individual strands are thick because I have Asian hair. Try looking on YouTube for tutorials on how to get thin hair more voluminous and thicker. Good luck!