Go Tim Ferris way - notebook where the first page is left for the table of contents, and number all even-numbered pages as first step.
But how do you archive these cards? That always drove me mad so I use them only for something “encyclopaedical” otherwise it is too much messy.
I am sure it is because I don't hold my pen/pencil correctly, but I think after 43 years I am not going to suddenly fix that.
Use a fountain pen. You can't press too hard: it bends and breaks the nib.
Disposable ones are good enough now, e.g. the Pilot V-Pen.
https://cultpens.com/products/pilot-vpen-v4-disposable-fount...
Fountain pens are nice too since you don't need any pressure.
My writing looks a lot better if I just force myself to slow down and be deliberate, but honestly it's a constant battle. I'd definitely benefit from practicing penmanship on it's own.
Several thousand more like.
I've had many writing classes in school and different holders for the pen etc but I never managed to improve at all. Writing is just not for everyone.