Just to clarify, most semi-auto pistols have some sort of safety device. There are basically two types "active" and "passive". The "active" safety is a lever, switch, button, etc that needs to be manipulated to put the pistol into a state where it "should" fire. The "passive" safety (Glock pistols have 3 of them) are devices that should prevent the gun from firing, but sort of automatically disengage themselves in the normal course of firing the pistol. The one visible safety on the Glock pistols is the little tab on the trigger. It's designed to prevent the gun from firing if the trigger is snagged, but will be disengaged when your finger is properly placed on the trigger. There are two internal safety devices on the Glock pistols. One is a "drop safety", which should prevent the pistol from discharging if it is dropped, and the "firing pin safety" that should prevent the firing pin to move forward unless the trigger is squeezed and the other two safety devices are disengaged. I use the word "should" when talking about safety devices working because a safety is a mechanical device and can fail. You should NEVER trust the safety to prevent the pistol from firing. Safe firearm handling procedures should ALWAYS be used.
Ultimately, YOU should be the one to decide what gun is right for you. Find a gun that you're comfortable shooting and can afford to shoot. The more range time you can get, the better off you will be. Skills can be developed if you practice (properly, but that's a whole different issue) enough.
Revolvers aren't for everyone. It's a personal decision. They are good for many different reasons. First and foremost is that they are simple to operate. Second, they are less likely to malfunction than a semi-auto.
Whatever your choice, there really isn't a "right" or "wrong" answer. As long as you have sound reasoning behind your choice of SD firearm, and it can do the job that you intend it to do, you made the right choice.
I'm a firm believer that there is no such thing as a "lady's gun". This is a very common term that is highly misused. There's a gun called the "Lady Smith" that was marketed as a "lady's gun" that is commonly used by LE as a back-up firearm for men and women. I've carried on on many occasions, and I'm far from being a "lady". :biggrin:
I strongly recommend shooting as many guns as you possibly can before making your decision. Whatever you do, don't let price be your primary deciding factor. There are a lot of inexpensive guns on the market that would do great for SD, OTOH, there are a few models that I would refuse to shoot.
Happy shooting!
gf