At work I was given a generated password (not my login password for context) of random words with numbers replacing/inserted at random points which I quickly me

At work I was given a generated password (not my login password for context) of random words with numbers replacing/inserted at random points which I quickly memorized and used several times a day. After touch typing it through muscle memory for 6 or so months one day I misentered it a few times in a row, and I realized I had no idea what I actually had been typing the whole time (I knew the dictionary words, but the combination of numbers and where they appeared was the issue). Spent a while trying to zone out and let the muscle memory take over again but didn't work and finally gave up and asked for it to be reset. Very strange experience....