You can feel confident only if you feel comfortable in your footwear. The most challenging item of footwear is high-heel shoes. You know how attractive you look with a pair of nice heels on you.
Now the only thing to do is to learn to wear heels. You might be surprised to find out that some ladies consider high-heel shows more comfortable that flats!
Get appropriate support
Shoes feel uncomfortable if they do not fit properly. If your footwear is too tight or too lose, it means you'll not be able to walk in it all day long. Your feet deserve the best shoes. Painful walking is not an option at all, especially if you stay on foot for hours. With heels that fit well you'll look and feel great both in the office and in town.