Hi guys, I just purchased my first handgun M&P shield 9mm. 1.0 and have started going to the range. For some reason I can't seem to hit my target. The aim looks perfect, when I pull that 10 pounds trigger I either hits too high or too low. Not sure what I'm doing wrong. I'm thinking it's the trigger or ammo not sure. Please give me some advise because I'm really bothered.