Puppy barking to be let out of crate

I have a 4.5 month old golden retriever puppy. she is currently barking a lot when she’s in her crate. It is when she has energy and wants to be let out.

I try the ignoring method, but she could genuinely bark all day. The neighbours came round today to complain.

Does rewarding her in the gaps of quiet work? Has anyone successfully taught the quiet command?

Does anyone have any advice? I’m at my wits end. She wakes me up at 6 in the morning, and it’s so early that I can’t ignore her and let her bark it out.

She’s only quiet for an hour after ive worn her out (through playing/walk), or when I give her enrichment (which lasts 20 minutes). She does sleep through the night which is a positive.

I just don’t know what to do. Please help!