I have created a writing system for p&p rpg long ago and I kept improving on it for years as a hobby. It's messed up on purpose, i used it for puzzles and my pl

I have created a writing system for p&p rpg long ago and I kept improving on it for years as a hobby. It's messed up on purpose, i used it for puzzles and my players (math and CS graduates) couldn't figure it out so it's good enough. I also got comfortable enough with it that i can read/write it reasonably fast. I'm using it for writing personal stuff down (on actual paper which i keep in my actual desk). It's also good for short notes kept in physical wallet. You won't decode it when all you have is 5 weird scribbles and i don't think a thief would steal my wallet, follow me home, search my home, steal my journal and do a cryptographic analysis just to read my journal or steal my bank account :) I believe in physical air gap and security through obscurity far more than in keeping personal stuff on internet-connected Turing machines no matter how well the encoding algorithm is supposed to work.