Whatever the reason for her doing this, the answer is that you have to give her a bit of a cuddle, on your terms,at the outset then say 'No, down, that's enough!' and push her away. Then steel yourself to ignore her, whatever she does.My, that requires strength of will (by you: her willpower is already proven) !.If she keeps coming back don't give her eye contact or do say anything towards her, not even the 'reward' of saying 'No 'all the time: she thinks even that's attention, and better than nothing, so she'll repeat the behaviour.
It helps if she has something to chew on or play with quietly, to occupy her when she's not getting your attention.
She behaves like a Standard. I have kept standard poodles and also bred the other sizes. Standards differ in behaviour only in that they are a lot longer in growing up and maturing than their smaller relations. At twelve months she'll still be daft and exuberant, given to wild bursts of dashing about for any reason and none.However, they are very intelligent and while that's part of the problem it's also the answer. She has learned very quickly that her behaviour gets attention (any reaction from you counts as attention) and she'll exercise every brain cell to devise as many ways as she can to keep it. But, given stubborn resistance to her wiles, she'll learn to be satisfied that once you've said 'No' once and ignored her completely nothing she can do will change that.Thereafter she'll wait to be called upon by you and not demand of you.(It'll still take time though)