toastyhat:

if you wanna build a habit but executive function is not your strongpoint, I recommend learning the trick of the gentle reset!  or, getting back on the horse.  don’t obsess over Doing The Thing every day right on time; rather, try to make it happen whenever you can, on average.  don’t beat yourself up for not doing the thing; just remember to get back to doing the thing.  settle in for the long run, whether you can keep it up consistently or not, and your brain will eventually get more used to it.