[hkruss]

Firefly. I hope you are out of you're bad situation and I wish you well. I think you made a good decision in buying a weapon for self defense. HOWEVER
As mentioned above, you NEED to practice at least periodically with it. I CANNOT EMPHASIZE THAT ENOUGH!!! You have a duty to yourself (and others) to be knowledgeable and proficient with your weapon. Learn how to break it down and KEEP IT CLEAN! Your life may depend on that one day.
Next, get your concealed carry permit if you haven't already. This will make things a lot easier on you (legally) if you ever do have to shoot someone.
Take a firearms self-defense class if you can. There is a lot to learn about defending yourself, and it involves more than just knowing how to fire a gun!
Finally, maybe most importantly, you need to resolve in your mind whether you REALLY could take a life to save your's. If you cannot, you probably should not have the gun as you will hesitate if THAT moment comes to shoot. The gun will probably be taken from you and (God forbid), used against you. I hope I have your attention because I want you to be safe. I truly wish you well.
HKR