Good for you - what a beginning! I'm afraid sales is definitely not one of my strong points, and I'm probably a Salesperson's worst nightmare, lol. Unless it's a bookstore or antique store, I'm one of those people who goes in, gets exactly what I need and beats it out of the store as fast as possible! LOL!
There's nothing wrong with knowing what you want. As a salesperson, I like people who know what they want. remember that sales people SHOULD know their products. A conversation with a salesperson may yield results that you weren't expecting. It's not always about the sale, but the transfer of knowledge when talking with a good sales person.