I also suffered for a long time with an apparently long circadian rhythm. My experience with how that intersected with fixed schedules went much worse: poor sle

I also suffered for a long time with an apparently long circadian rhythm. My experience with how that intersected with fixed schedules went much worse: poor sleep in school descended into insomnia, and absolute terror of the alarm clock. Insomnia persisted and worsened into my 30s. This all fed quite a bit into a whole lot of chronic mental health problems. And I’m not exaggerating, this all did very nearly get me dead. The things which really helped: 1. Diagnosis and treatment of ADHD. Before which, I never would’ve imagined that a daily dose of amphetamines would help me get anything resembling consistent sleep and rest. Since then, my internal clock has been much more consistent with earth days. 2. Getting my pup. Partly for the reason you describe: she has needs that don’t care about my internal schedule, and my schedule has to accommodate her. Also in large part because she’s been singularly the best sleep aid I’ve ever had or could have imagined. We wake together, do our daily routine, play, wind down, then we snuggle... and it’s the best rest I’ve ever gotten. Edit: I should add another thing that helped, for anyone who struggles with sleep. I stopped using alarms to wake, almost entirely, except for extraordinary circumstances. My sleep schedule does drift a bit and I have to consciously keep it in check when it does, but I get much more comfortable with the actual act of resting when there isn’t a hard time limit attached to it.