Vaccines and anxiety attacks?

So my baby just turned 1 and is due to get her shots and I am TERRIFIED of her getting the MMR shot and have been ever since she was born. Not because I think it causes autism but because I read a bunch of other things saying it caused neurological problems in kids brains and also a bunch of parents saying their kids changed after that shot and quite a few other negative things that I’ve read..... so because of that I’ve been having anxiety or panic attacks lately? I’ve never experienced something like that before and I just have a really bad feeling about this shot especially since she also seems to have a few food allergies and eczema and idk if she’ll have a reaction to gelatin in the vaccine and blah blah blah. Anyone else have something similar like this happen? I’m thinking to just delay the vaccine until she’s 2 or 3