Anne's booke comes *highly* reccomended. I'm not so proud of your LYS telling you that you knit "incorrectly". You should only knit the way you feel comfortable knitting, and that IS the correct way. As long as you're consistent, you'll be fine.
Read Anne's book, read anne's blog
and you will find there are thousands of people like yourself out there.
Oh, and hasn't anyone told you that knitters are anything BUT normal?!