What is a Good Early Morning Pilates Exercise?

Question: I’m 13 and I have to get up for school around 4:30 am. This year I wanted to make a habit that everyday I get up and do pilates. I’m not doing it to lose weight but more to just get exercise and wake-up. Is this a good thing? And what would be a good workout? I have a tape the workout is a little harder for the morning. Should I use a Pilates video and just push myself? Thanks in advance!!!