Sleepy Baby

FTM here; my son is 10 months old and i need help on how to get my son to go to bed?! Ive always bathed him lotioned him up brushed his hair and fed him a warm bottled rocked him to sleep about 730pm then he would sleep in his crib till 2am ish wake up want a bottle id take him to our bed and have him sleep with me til i got up for work which was 430ish... now he fights sleep like crazy and wont go to bed till 1130 midnight most nights when i do the same routine if he falls asleep 8 830 then hes back up ready to play at 10pm