Whether you will admit it or not,people are always concerned of what people think of them. It's perfectly normal and it's human nature.
That's why forums like this are created, to help give pointers and tips to how and dress better.
I for one like to represent myself as a well-dressed individual. Remember you only get one chance to make a first impression.
As a sophmore in college, I have changed my wardrobe completely. I now go for a "Grown and mature" look for...