how do people /do things/?

i don’t understand how people just function. like they close their eyes and fall asleep at a specific time every night. then get up at the same time every day, just because they have to?? and getting ready in the morning feels like one task? instead of several steps to several different tasks?? it’s the same with everything... sometimes even the things i like to do. i don’t understand and no one i know understands why i don’t. it’s just normal mindless action to them, but not to me. time doesn’t even feel real to me sometimes. yesterday feels like it was last week, but the months before quarantine feels like it could’ve been yesterday. i can’t even trust my brain. i feel like everything that comes out of my mouth is either wrong or a lie. i can’t even say someone’s name unless they tell me themselves and respond to someone calling them by that name at least twice. i can’t just do things and i feel like i’m broken.