Met a girl at the wedding

I am a 19-year-old male and I went to a wedding far away (around 13-14 hours drive) from my home with my family. We stayed there for around 2-3 days and attended all the functions. There, I saw a girl and she was so cute. I couldn't stop myself from thinking about her. We had a few eye contacts at the functions. I wanted to talk to her so badly, but I am an introverted kind of person and couldn't. However, I got a chance at the last function and I talked to her a little bit. She was sitting with her cousin brother. Then, I was watching stocks when she asked if I trade. I said yes, and then she said she also wants to learn all this but doesn't know how. I asked for her Instagram and recommended a few channels to her. Yesterday, she also posted a story and I liked it. One more thing, during our conversation she was saying Ameer and Moti Party but I am not. Maybe I am at a better position than hers, but it doesn't matter to me. What should I do now? She is also 19