Heres something I learnt ont eh kids side for bedtime routine: choices and consequences. You can have a discussion with them about the choice they have on bedtime, and what the likely consequence can be (getting up late, not going to school etc). Then let them make the choice and bear the consequence. It's both trust building, and genuinely gives agency and outcome to the kids. Not sure if you can implement this, but if you can, it helps.

Don't wish for the period to pass, since parenthood is a sequence of these challenges, this will go and the next one will come. It's rather a chance to "upgrade" your parenting.

Wishing you the best.