How to ask a girl out? (LDR)

Hi <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> family! I’m a 14 year old pansexual, female. I recently met this girl, who is 13 over this app and we’ve been texting for over 3 days now. We live over 200 miles away from each other, and I want to ask her to be my girlfriend. Any tips on how? I want it to be special.