6 months and suddenly baby doesn’t want to go to sleep at night

K

We were doing well with our bedtime routine and now all of a sudden once we hit 6 months he knows it’s almost bedtime and starts doing everything in his power to not go to sleep. Our bedtime routine used to take 10 min and now takes at least a half an hour. Anyone else going through the same thing ? Is this just a phase? He also started becoming afraid of loud noises and new people.