Changing Sleeping Schedule

I'm so worried about my sleeping schedule. The past few days my daughter Kate has been changing her wake-up time; instead of waking up around 8:00 a.m., now it's much earlier, like 5:00 a.m. And this is a big change that really affects me because I like to go to sleep very late, like around 2:00 a.m. I have to do something about this as soon as possible or else my body will suffer. Sometimes things get difficult caring for a child, especially when you're away from your mother. I know how much easier things would be if my mom was around because she has a lot of experience taking care of kids. It would make everything easier for me. Maybe I'll call her tonight and ask for some advice.