Flying with a baby, so scared! Tips?

I’ve heard all the same stuff from everyone:

“Feed her or give her a pacifier during takeoff and landing”

“She’ll probably sleep most of the time”

“It won’t be as bad as you think”

But my daughter doesn’t take a pacifier, doesn’t sleep until she’s overtired and only then sleeps after screaming her head off or you walk around WHILE nursing her, is teething but doesn’t like anything in her mouth but my boob, and nurses until she’s so overfull she spits up everywhere but won’t let me take her off the boob. She’s 4 months old.