Apple watch series 8 not waking me up!

I have an alarm set on my watch and my phone --the apps for AutoSleep and the haptics--I find very confusing. Plus, it appears that there are still not an update to fix bugs. Why not?

No matter what I do, it only starts recording my sleep at midnight.

I've slept through my alarms for over and hour. When I wake, the alarm appears to be going off but no sound from either device.

I consider myself a highly literate person with a lot of experience with technology, but this smart watch and smart alarm with all the great features that I wanted is so complicated that it makes me wish I hadn’t gotten the new watch. I’ve never overslept in my life.

what the heck is wrong? What am I doing wrong? I cannot afford to over sleep. I’ve missed doctors appointments, important meetings, and late to work to the company I own--this is really not setting a good example to my employees.