Issues introducing dog to kitten

We have a dog named Sunny who desperately wants to play with a new kitten we have, but she’s just coming in too enthusiastic and too rough. We tell her to stop but it seems to almost make her more neurotic - so I’ve tried ignoring it but now she’s starting to get more rough with him. We tell her to “leave it” and sometimes that will work but seriously for a second, as soon as he moved to fast or we praise the fact she did leave him alone, she’s right back at it. How do we get her to just chill out? It seems to be inhibiting his exploration of the house, which sucks because he is pretty curious and a really cool kitten. He does recover really well from these interactions and his eating, playing and litterbox use is all great.