I’m doing everything “right” by can’t I get my baby to take naps?!?!???

Wake windows, tired cues, dark room, white noise, full belly, clean diaper, walking, rocking, laying her down and leaving, coming back in to comfort (without picking up)

But my baby WONT sleep!!! She’s nearly 5 months old!! Shouldn’t this be getting better by now?? I’m exhausted.

She only falls asleep while eating, but she frequently wakes back up. If she sleeps it’s like a half hour. Once in a blue moon we get lucky and she naps for an hour or so, but if I try to repeat what I did the next time it doesn’t work!! I’m losing my mind with this! She just cries because she’s tired! I fully know how to fix this!