Days and nights confused😩

🍀Meghan🍀 • Engaged to the best man in the world! And a mommy to the best baby around 😘!
My son is 9 weeks and has his days and nights confused.. What can I do?? I tried keeping him awake longer during the day but at like 2 am he will wake up and won't go back to sleep till like 5 am.. I need help!! Please!!