Early wake up time

So I’ve only just transitioned my 8 month old into her own room. She actually sleeps really well in her new room considering it’s also a new house. The only problem is she wakes at 4am it’s not to feed or for comfort she is up for the day. I try to leave her to it for as long as possible hoping she will put herself back to sleep but she just s starts screaming. I have work from 8am every day so safe to say I’m absolutely exhausted. Any suggestions?