I asked my partner to share all of her personal information with me and she said I was being too nosy.
Why do you want to know all of your partner's personal information?
I want to know everything I can so that there will be no secrets or surprises in our relationship.
If your partner tells you that then you are too nosy in your relationship then you shouldn't push them so hard for information. You shouldn't be nosy because a healthy and strong relationship relies on trust. If you keep being nosy it just shows others that you are insecure.
I still want to learn everything I can about my partner's life.
Your partner may feel uncomfortable when you pry into their private life. You should trust them and not try to find so much information about them if they're not ready. Be patient and in good time you'll learn everything you need to know about them.