I am new to the world of handguns. As a matter of fact, the last time I shot anything was about 20 years ago in the military. I bought a Glock 19 4th Gen three weeks ago, still trying to get to the range to shoot it for the first time. Living in suburbia stinks! I grew up in rural PA where I could have been shooting in my back yard for the past three weeks. I've been practicing the basics with snap caps, reviewing safety over & over, and am ready to go shoot at a range next week. Any pointers, "do's & don'ts," or general/specific advice? There's an outdoor range ($6) and an indoor range ($19/yikes!) - both about 30 minutes away. Mostly wondering what to expect from a 9mm. Lots of people have put my choice down, but I think a 9mm is more than sufficient to begin with, no matter the weapons I've handled in the past. Thanks for any pointers, no pun intended!