Which bag should I save up for?

I'm about the same age as you, and I'm planning on saving up for a really nice bag as well. I'm not sure what though, but I'm leaning towards a Damier Speedy. I just really want the feeling of actually paying for it with my own money.

So I vote for the Speedy, even though I'm a little bit biased.
 
i love lv and chanel and i'm in my 30's. i don't see a lot of teenagers carrying chanel so i'd say maybe get a cute chanel cambon pochette. but if you're asking for what's easier to save for- then definitely speedy. it's a classic bag and lv is always a good purchase. good luck! when i was 16, i think i didn't even carry bags. so you are definitely on the right track to handbag addiction. haha.