5 month old sleep schedule

Does anyone on here let their babes nap whenever? I have tried and tried to implement a nap schedule for my 5 month old since he was about 2 months old, focusing on wake times so he doesn’t get overtired but now he fights his naps so hard that it gives me anxiety. It’s not that I’m trying to take a break, I’m trying to make sure he has a healthy schedule. He had a set bedtime of 6:30-7:30 depending on his last nap.

I guess I was wondering if anyone didn’t give their child a nap schedule and they were still able to go to bed without being miserable and overtired? Sleep is our only struggle!

TIA!!!