Putting baby to bed

So every night I feed and rock my 3 month old then put her in her bassinet, well for the first few minutes she’s okay then starts screaming. So I’ll come in give her the paci she calms down then not even 2 minutes later she spits it out and is screaming again. This process goes on for about 1 -1 1/2hrs before she falls asleep for the night. It’s very aggravating I’m not sure what to do. I don’t pick up up or talk to her I keep it very boring(as recommended). She doesn’t take the paci any other time of the day she doesn’t really like it but at night she will. What do I do? I heard you shouldn’t let them cry it out yet she is too young but this routine is too much