I made my first visit to the range today and shot my first handgun. I rented a Glock 17 and fired 100 rounds. 50 were with the instructor. Most shots were 4-8 inches low and a lot were left of center. I guess I am anticipating the recoil. I hit about 10 rounds in the bullseye. Any tips to better my accuracy besides hours of practice? I guess I am looking for technique advice. Thanks!