When can I stop waking up my baby

I’m planing to ask the milk consultant and doctor on Monday but I’m curious in what other people are doing.

My baby is 3 weeks old +2 days and has passed her birth weight by 2 pounds and bit more, I usually wake her up every 3 hours to feed and sometimes she will wake up on her own but usually after the 7 pm feed it’s me who has to wake her up every 3 hours otherwise idk what would happened since I have never let passed the 3 hours without food, I’m just curious what everyone else is Doing, should I let her sleep ??? I do struggle to wake her up a lot after the 7 pm feed, usually I will have to use a cold wipe to wake her up.

Usually during the day she will wake up to eat every 1.5 to 3 hours