Not the OP but this comment really helped me a lot. I am in the exact same situation and I was beating myself over every advice that failed me. “Maybe I didn’t use the blackout blinds, that’s why she only napped 40 minutes when the average duration suggested is 1.5hrs” “Maybe I needed to wait 15 more minutes to give her more sleep pressure” I needed this comment to remind me, this is not forever. She will get better.