Thinking too hard about the phrase "if I were you"

In "If I were the type of person you are" situations, I tend to use "if I were in her shoes..."
In "If were me, and in your position" situations, I tend to use the good ol' "If I were you".

I'm definitely not saying that's right (or wrong), that's just what I do is all.

decipher, please:
https://www.youtube.com/watch?v=1ibrtEQEAKs