baby has days and nights confused 😭

he's 5 weeks right now, and he sleeps ALL DAY, maybe stays awake an hour, then at 2 am every day, he wakes up, and stays up until AT LEAST 6 or 7 am.. i make sure to keep it light during the day and dark at night, but that doesnt seem to help much. he still sleeps all day, regardless. ive read it takes awhile for babies to develop their circadian rhythm, but i need sleep so is there anything at all that i can do to get him to sleep at night instead of the day?? also, during the day, i try to wake him up sometimes but he's so tired, he goes back to sleep in seconds basically 😭😭 also please dont tell me to sleep when he sleeps bc i have things to get done which almost makes it impossible 😩