In order to develop your own style or signature look it is very important to see differently. Photography is subtractive – opposite of painting which is additive. A sculptor chips away at the slab of rock revealing the work of art. Photography is all about chipping away at reality and revealing our own unique perspective on the world around us.
Using a single focal length lens, (i.e., 50mm or 90mm) will assist in reducing the amount of excess in your photos. Wide angle lenses will obviously be more difficult to reduce visual content that does not reference the main subject. Commit to one lens and practice, practice.