Strong, hard to crack but easy to remember passwords are actually easy.
Use a pass phrase.
3 or 4 words.
They can be in lower case.
Remember the spaces between the words.
For example: “black eggs sometimes yellow”.
Forget password complexity rules (watch https://www.youtube.com/watch?v=6L5G2MBzflo at around the 7 minute mark).
Easy to remember words, separated by spaces, all lower case.
25+ characters in the phrase is damn hard to crack, even if they are dictionary words. The bad guys still need to get the words in the right order.