So, she sleeps around 12.5h at night and between 1.5-2h in the day.
On that basis, I don't think 6am is an ew despite the fact but feel Early yk. If you want a later WU, I think you need to push the nap out for all else to follow.
If your LO can't handle a big jump, then increase increments of 15-20mins. So increase and then hold for 3days, increase again, rinse and repeat until you are where you want to b
What do you think? X