Thanks for all your answers :)
@lovemyponies: Lucky's 5 years old and I've had her for 1 year now. I haven't got any great plans for her. I'll just see how far we get :)
@sunny06: With the hands... that was a tip from our trainer to get her to hold her head lower even while moving forward better, because first she would only hold her head low while moving really slow.
@G and K's Mom: I know, my legs should be still, and I'm working on it, but I can't seem to have them completely still. ... I have to play with the reins to make her hold her head in a lower position constantly. If I stop it too long, she'll raise her head and run like a griaffe again. Any tips what else I could do if not playing with the reins?
What do you mean "to get the bend"? Do you mean to get her to hold the head low ... then the answer is yes. That's the main reason for my hand position.