2am -530am party time apparently 💤… tips on how to break the cycle

Hi all Just looking for advice. I currently have a 4 week old and of course I’m not expecting to be in a sleep routine just ye, she is brand new and we are both adjusting. However , we are pretty regular every 3-4 hours feeds 4oz. However, the 2am one strikes and she is up then for 2.5 hours and continuing to cry for food. I have started increasing this feed slightly by an oz but bless her we just can’t settle her at this time. We change, feed, wind Rock and lullaby but she just stays so unsettled. I just don’t know what else we can do, but this has been the pattern now for 2 weeks. Anyone have any tips for me? Thanks so much