See this is where being a fan of hip hop helps.
Try using a memorable song lyric with a lot of slang in it. Guaranteed if you put 2 bars it will be atleast 18 characters long. Plus have words that arent in the dictionary
The time I was born was exactly 12:24AM on January 1st, 1924; It was a very sunny day! The day of the week was a Tuesday.
Ttiwbwe12:24AMoJ1S,T1924;Twavsd!TdotwwaT.
I mean that's not my password but that's the logic I followed. That allegedly would take centuries to brute force. It's 41 characters and has 5 special characters in it as well as some capital, lowercase, and numbers. It's easily reconstructable by you but the string of characters it forms looks like gibberish. Such a note could be stored on your iPhone and encrypted there locked by FaceID.
I guess for a hip hop flavor
Regardless of rain or snow, sleet or hail I kick street tales, choking nikkas like I'm Sprewell.
Roros,sohIkst,cnlIS.