MMA is multi-faceted. Take Boxing for instance, the competitors need to focus on developing their hand speed and power striking, footwork and physical fitness.  However, there are concepts, theories and principles that (when combined) create different styles of boxers.  Now imagine, incorporating striking with hands, elbows, knees, shins and feet.  Also incorporating techniques in grappling that include clinching, wrestling and submissions.  The many dimensions, create more divers possibilities for MMA fighters. Your success in MMA really depends on your level of dedication, natural talent and athleticism.  It's not impossible to get good at MMA in one year, but it comes down to the effort your put in and how efficient your training is.