Another question for you guys,

There is this Swedish girl who i know through a Swedish friend of me (I'm dutch myself). She in in his class, 16 years of age and truly wonderful. I randomly added her on facebook because that is the way I roll. She started talking to me about two weeks ago, and i don't know what she thinks about me, but she seems interested, as far as i have women knowledge.
I talked to her 2 times after she started talking to me, she hasnt started talking to me after the first time.
She says things like:

Ex 1. She: hahaa you are funny have it nice !

Ex 2. Me: there is a pretty big chance im going to sweden this summer, maybe we could meet and party

She: haha yes why not;D

Ex 3. Me: haha he is such a brave guy for filming you with all risks
why did u hide anyway, now i have to come to sweden to see you

She: haha yes u have!;)

This might look pretty childish and non-interesting to you, but it means a lot to me.
I know some basic pua skills, but i'm bad at putting them into practice. I would love people to tell me what i should do. I'm so desperate, i would really love any help.

Thxxx
Maarten

What's with all these kids lately? I doubt PUA is meant for youngins.

Anyway with regards to your query. Just ask her out, you're being over-analytical. If she says yes good for you, if she says no then its her loss and move on to another girl. It's that easy. You'll learn through experience.

Thx for your advice man. Sorry for being a kiddo, but you see how under-confident i am. If i start at 16, i might be decent at 20

Confidence is a thing you'll gain from experience, whether good or bad. You're still young so you'll get a lot of chances before you hit 20, don't worry about it.