No, i am not suggesting to create your password like this. you can create something like !Went>P@r!$&be$tmem0ryev_r
Something that you can create that reflect to your experience and easy to remember and hard to crack
Ngl. leet speak paired with symbols and everything is actually a good password maker, but humans aren't really good at creating good passwords that are secure enough to keep them safe from hacks. Also, the 12-word seed IMO is easier to keep/hide in plain sight, and more robust and secure rather than a 3-word, 1-phrase combo that you're suggesting of.
Some people keep their 12-word seed in a rather unconventional yet witty way. Let's use these words for example:
there wake tomorrow carry cold since lose open practice road shame witch
"There used to be some sort of blabbering around town. Wake, my child, as he often say to his daughter. Tomorrow, we shall feast with the gods! Carry these cloth round town and try to sell them in the market. Cold feet is attributed to being afraid or nervous of the current situation. Since 1971, the gold standard was no longer in effect. Lose something important and you'll never feel the same again. Open-air stadiums are preferable during viral outbreaks. Practice makes perfect, or so they say. Road trips are fun with your friends and family! Shame that I didn't have the last piece of beef. Witch hunting was a popular activity back in the Victorian era.
I for one tried to do this and left the text somewhere inside a book and used it as my bookmark for sometime. It works, it's secure, and no one will ever get interested on it due to its nonsensical phrases and purely unconnected sentences.