One other key safety point just to have it stated. Obviously this is just a handgun so your range will be limited, but if you're going to shoot outdoors, don't just look at where you are shooting - look BEYOND where you are shooting. Bullets travel well beyond your target unless it's solid. Make sure nothing else is back there.
Also check here to see if there is a club nearby (even if it's just rifle or trap/skeet). They may be able to guide you better, or offer to have you come out to a private area and offer you some mentoring or refresher training.