Your hair color is gorgeous!!! I would kill to have that color naturally. Kill. You can totally rock the white-blonde look, you're already pretty much there.
You know what, you don't need to do much. Look for a blonde highlight spray that Ida mentioned at hair care stores. Still, those have bleaching chemicals in them, so try out something natural first. Do a chamomile tea, lemon diluted in water, or vodka rinse through dry hair every few days. (Sitting in the sunlight while it dries will boost the effect, although the weather in Germany right now probably isn't sunny.) It really works, I swear! Those ingredients dry out the hair, so follow with a good conditioner when you wash it out.
If you're still not pleased with the lightening effect, best to go to a salon and get highlights. Not a full dye job, as you definitely don't need it. The stylist will know the right color to use, and because your hair is already so light, it won't be that damaging, lucky girl. The most important thing to ask for is that the highlights don't start right at your roots, but at least a couple of centimeters away from them. This will give the most born-with-it effect, and will be much prettier as the highlights grow out.
All I can find is the baby blonde shampoo. Thank you!
I have a question: I see in all those Swedish Fshion Blogs girls who have really really(!)light blond, like platin/ash blonde. I know they are naturally blonde, but I can tell that not THAT blonde. I think they're hair is a lot darker(but still blonde). So, my question is, I am naturally blonde as well, and I want to have the very light blonde that they have, so how can I get it? what's they're secret?
