Interior designing is a very diverse field which focuses on the many aspects of a home. From furnishings, to overall colors and finishes of walls along with everything in between. The very basic step towards succeeding in interior designing is adopting a look or style that you will be using and adopting.
For French style interiors, you get French style furniture, decor and other accent pieces. For modern looks, you go for stainless steel and adopt minimalistic approach that is sharp and clean. To decide whether a style fits your character, scour magazines and other publications regarding decorating styles to see which fits you. Your style is your projection of your character to the world and impressions do last. People will know you by your style and the way you adopt it to your home.