Can I get a 4 month old on a sleep schedule yet ?

He naps thru out the day of course but around 130-2 am that’s when he fully falls into a deep sleep can I get him to bed earlier than that or he is still to small he turns 4 months next week help me moms I’m tired of being awake at 1:30 am trying put him to sleep Yes I did the whole warm bath with the relaxing soap thing and he will fall asleep after the bath with milk but he wakes up around 1130 and he will be wide awake until 1:30 am what can I do if anything please I need advice