Nice post, Geline!
Now, how do you know if your alignment is off? If you think your alignment might be causing you problems, this should help put things in perspective. First, I'll hit balls with radically open, closed, wide or narrow stances. I'll mess around with my grip, shoulder and hip postition, etc. Even if you don't consiously compensate for it, you can still hit very good shots from an awkward set up position. Now go back to a regular set up, and normal shots start to feel really easy.