Mother in law rant

For weeks I've had a name picked out for a boy (Ivar, from Vikings) and my partners mother has had a problem with it. Today we found out we are having a little boy and I was so excited and said "my little Ivar!!" And she snorted and said I wasn't to dare call my kid that name as it's stupid and sounds like it should be a girls name, and that she will call it something else. Then my partners sister said she hated it, my partners friend said it was stupid and my parter just went along with them. But it's really my mother in law that's driving me insane. She's saying I can't do this and I can't do that, I've said I don't want certain things and she gets them anyway and just plain ignores my wishes. and she wants us all to go to the mainland in early January when I'm due last day of December to meet her entire family who I've never met, so the baby will only be 2/3 weeks if I go on my due date and I've tried to tell her that it isn't likely I'll be traveling so early and she just makes me feel like shit saying that I shouldn't deny her family of seeing my partners child and she doesn't care, the baby will be travelling and I'll just have to deal with it and she's gone and told them all it's a done thing. She's telling me I shouldn't put the baby in a bassinet I should put it straight in a cot and she thinks I'm crazy for thinking about not introducing my child to junk food and that she will be giving it all the treats. And she's so rude and short towards me. Ignores me but acts all nice when my parter is around. I don't know what to do it's causing me so much damn stress 😣😣😣😣😣😣