Mexico

There is a hugeee possibility I might go to Mexico.
As a student exchange. They'll come to Slovenia, and we'll go to Mexico.
I was a part of this project once already, I went to France. This time, I came home, and only my dad was home, I asked him, and conversation went pretty much like this:
"Hey dad."
"Hey, hun. How was school?"
"Eh, okay. Hey dad? Could I go to Mexico this summer?"
"Sure. When and how? Who'll go with you?"
"In the summer, I don't know when. By plane. I'd go with my friends, or alone, I don't know."
"That's great. Why?"
"Eh, it's student exchange program, so a girl will come here too."
"All right. Any teachers with you?"
"No, just us kids."
"Okay. You can go. Just ask your mom first."

I mean. He just let me go to Mexico. You realize how far is that? It's like... It's on the other continent. It's half of the world away. And he let me go there by myself (or with friends) WITHOUT any adult supervision on a plane. wow.

But like always, my mom doesn't let me. And I need to be straight A student, if I'd like to go. And that probably won't happen. At least not with my Math skills... But I'll try to convince her. Any ideas how?