How do I figure out who I am?

Lots and lots of journaing and self reflection. Write down your dislikes, likes hobbies, etc.. Try hobbies and skills that you have been wanting to try for a while. Find a personal style or aesthetic. Wear clothes that take you comfortable and feel like you. Figured out what you like about yourself and what you don't like. What do you do that you dislike but still do for others. Is it helpful to you and your identity? Paint or draw a self portrait, reflect on what you made and seeing if you find out something new about yourself. Make a craft board with things all about you.