Here is a chart that shows how fast hackers can crack your passwords in 2023. As you can see the longer the password and complexed the longer it takes to crack. I always recommend at least 12 characters complex (Upper lower case, number and !@#$%)
How I create my long passwords is by thinking of a phrase and use the first character of each word as your password but adding the numbers and !@#$% . I just have to remember the phrase. Easier then odd passwords.