I've had the same journal since 2017 because I just can't get myself to stick to this kind of habit. I want to! I love to write! But there is something fundamentally taxing about putting my real thoughts down in a meaningful capacity that isn't for the sake of my therapist or partner. Not that I don't think I ever have any interesting or prescient thoughts, but I often feel a lagging in my brain that makes thought-writing tedious. When I was still in school I could utilize it to fill space in a paper to meet whatever arbitrary minimum had been set, but as an adult who's not being graded, I find that the lack of external pressure makes me a lazy writer. Trying to force the habit through challenges and such only breeds defiance. Future me will sneer because I'm not worth listening to and lack the authority to tell myself what to do.
This is making a great case for bringing back patrons of the arts. If I had some rich person paying me to be alive and create art and write, I think that perhaps the pressure of that arrangement would make me a more willing participant because NOT creating would instill immediate guilt in my very core.
Just a thought to get us started here.