"im trying to keep everyone happy and really making myself miserable"
OK - WHY are you trying to keep everyone happy? Why is their happiness your responsibility? Are they reciprocating - are they trying to keep you happy? Or are they absolutely oblivious to your happiness?
Sadly, from the get-go we are indoctrinated by the whole 'sugar and spice and all things nice' agenda. We are trained to be nice, to think of others, to put ourselves last. And that might work out OK if absolutely everyone did the same; but as we all know - they don't. Your partner doesn't. His mother doesn't. They don't give even think about the happiness of anyone but themselves.
So - stop it. Stop trying to keep them happy. They don't appreciate it, and they won't reciprocate it. The only person whose happiness is your responsibility is YOU. And you have to start putting yourself first.
You don't want your baby to leave your side - totally understandable, we've all been there. And your daughter doesn't have to be away from you. Just because someone asked doesn't mean you can't say no. 'No, you're not taking my baby from me'. 'No, your mother does not decide how I spend Christmas'. 'No'.
So far you've been nice - " i stay pleasent for dp" - how's that been working out? Does he appreciate your efforts to be pleasant to his mother? (Does he even notice?) Or does he just take it for granted? Maybe it's time to take a leaf out of her book - "everything is her way or no way" since your partner seems to respond to this with obedience!
In short - it's time to stop smiling and waving, and instead to assert yourself as the mother you now are. Many of us can't assert ourselves for ourselves (all that damned sugar and spice training), but we bloody well can for our children! Leaving you for a whole day is not in your daughter's best interests and so it is not going to happen.
"The more responces i read the angrier im getting"
Good. You have every right to be angry. Your partner is trying to railroad you to suit his mother. He is prioritising her over you. Wrong, wrong, wrong. Get angry, use it as an energy to press your point home, and tell him to cut the apron strings. She is not the boss of you, or of him.