1 month old and naps

I can’t believe I’m asking this... but I’m a first time mom with little newborn/baby experience.

Background: my one month old hardly naps during the day. He usually naps for 2-3 hours in the late afternoon which makes bedtime late. One nap!

My question: do I declare nap time and put him down if he’s not falling asleep on his own? How many naps? What’s your sleep schedule.

Today: little guy looks so tired but won’t go to sleep. I tried rocking him, nursing him, and he won’t go down.

What can I do?