Iphone 5s - 14 years old - girl?

Hi, I'm 14 and want to get an iphone 5s. Is it worth it? I have an old nokia, its not touch and without internett… But maybe iphone 5 would work? Or iphone 5s is MUCH better? Allsow should i get 16 GB or 32 GB? I like to download music, take a lot of pictures and vieos, i download pretty much apps, like 15… Haha maybe not so much but yeah. Can you help me to decide? I'm from Norway btw.

Added (1). I have had an Iphone 3gs before, but i had to give it to my sister… So i have an Nokia now from my grandmother therefore…

At 14 i didn't even have a cell phone. This generation is changing

If you like video alot then 5S has slow motion vids (check it out on youtube). Depends what hte costs are though because at that age I would probably recommend 4S just because people tend not to take care of it.

Well going for a Nokia with no touch screen, no internet or anything I think you should buy a cheap touch phone and use it for a while until you get used to it.iPhones are a big responsibility and you need to be used to touch phones and internet etc on our phone before you get one.
They are also quite expensive. 16GB should be sufficient, my iPad is 16bg and it has loads of memory.

Yes you should.

The difference between the iPhone 5 and iPhone 5S are not much.
You can see a breakdown here: http://www.phonearena.com/phones/compare/Apple-iPhone-5s, Apple-iPhone-5/phones/7710, 7378

Depending on your storage requirements, you may want to get the 16GB. 32GB or 64GB model.