Everything you are saying makes perfect sense. Many of the tasks we do are simply because they are necessary. You get a boost from the schedule when it is ‘new’ but as time goes on that fades. Habit is a powerful tool. Keep to the same things at the same time making things automatic.
It sounds like you may not just have adhd, but your mention of feeling ‘nothing’ sounds a bit like a depressive symptom. You may want to talk with a doctor. If it is depression there are medications that start to get you on the right track.
No. But enough came that Lemmy is now a vibrant place.