I come back for update.
I tried to wake to sleep at 20' for the morning nap after we extended the awake time to 2hr and it works but only lasts 3 nap and then i think she has different sleep cycle, so we couldnt wake her 20m point anymore. The evening nap, we still got random result. If we dont come sh pat her, sometime she can make to 1 hour sleep. And as your advice, i dont let her sleep more than 2hour & bedtime little bit later (10-15m). But dd still wake up at night. I will come re-swaddle her, turn on the white noise, normally she will back to sleep right away. If she cooing, i wont try to sh pat, i let her coo and i get back to sleep just let the white noise on. When i woke up later, dd has broke out the swaddle, sucking thumb and sleep.
Sometimes Dd can sleep by her own. Like this morning, at her a time, i let dd play with her o ball, i fall asleep while watching her (im type of sleep-holic, i use most of y time to sleep. Lol) when open my eyes, dd was sucking thumb and sleep too. But her a time was only 1h30. Why dd sleep when she isnt tired yet? If i let her sleep by her own, a time wont never make to 2hour. Should i wake her up? And today, she wake before feed time 1hour, i let her play in dark room, wait until she more tired, turn on white noise, but dd only sleep about 10' and become awake, cooing, laughing ... So the a time will be from the last 10' nap or the one before?
And dd will be 5 month old next week. Should i start increase a time now? Actually, im doing +10 min for 3days each. Just waana ask to be sure.