Hello and welcome
It all sounds perfectly normal
He's just adjusting to a new environment. It can take them 2 or 3 days just to settle in and usually a couple of weeks to fully adjust and start acting like he owns the place. It's just a bit of time and patience although can be frustrating.
Meanwhile just keep talking to him through the enclosure/cage so he gets familiar with your voice and presence. They can hide away a bit at first and only come out at night. Some of us have a nightcam and you can watch the video on your phone the next day and see what he's been up to during the night.
So they like to burrow or nest somewhere, often sleep till late evening and are awake most of the night. Sometimes they're still up around 6am or 7am.
You can get them into a bit of a routine of waking a bit earlier by putting the food out around 6 or 7pm each day and making a bit of cage noise when you do it and they then get used to getting up at that time for food. But may go back to bed again until later.
He's also probably still a baby so a little bit scared or cautious perhaps. Looking forward to seeing a photo of him