I agree that you should take a safety class...
...But my suggestion for your first gun is different. I suggest a Glock 19 or 17
-. 9mm is a great round for a beginner, it's a great defesive round, and it's cheap. Cheap round means more practice!
-A lot of people don't think Glocks are great for a new shooter because they lack an external safety, but I disagree. Remembering to keep your finger off the the trigger until you're ready to shoot is probably THE MOST IMPORTANT safety rule (ok, tied for 1st place with the other 3 main rules
). If you can't keep your finger off of the trigger, then go buy some OC and a big dog for defense.
-Glocks are also good as a self defense tool for a new person. Someone that hasn't had a lot of practice, but needs a self defense tool NOW isn't going to want to have to deal with flipping all the right switches. Glocks are point and click. Keep It Simple Stupid.
-Glocks are very easy to maintain. They don't need to be cleaned too often, are easy to take apart, great warranty, lots of available support online.
-Glocks are super reliable.
-They are fairly cheap for a quality handgun... in the $500 neighborhood.
This is the most versatile package out there. Home defense, CCW, targets, plinking, hunting in an emergency, easy to use, easy to shoot, reliable, ammo availablility... You can't beat it as a first firearm.