Baby naps🙉

Does anyone who sleep trained their baby still have at least a few days in the week where one nap won't be that great? I finally figured out my son's 2 nap schedule, after a month of battle. But, he still has some days where he just doesn't want to either take his first nap, or his second nap. Usually it's his second nap. He's already up for 3.5 hours before that nap, it sounds pretty crazy to think that I need to lenghten this.

Or is it normal to just have off days..cause since sleep training at 6 months I don't remember having one full week of perfect naps.

Are there any moms out there who don't stress about naps??