The best self-defense is prevention, meaning that you should always be aware of your surroundings at all times. Try to park in well-lit areas, keep your keys in your hand as you walk to your car (between you middle & ring fingers is best), and try to travel in groups/pairs whenever possible.
If the attacker is just after your material possessions (money, wallet, etc), hand it over. Nothing material is worth your life.
If the attacker does touch you, yell loudly (BACK OFF!) and push your attacker away. This calls for help and tells your attacker you’re not easy prey. If it has to get physical, you only have a few seconds to inflict the most amount of damage. Go for the easy areas like the eyes, nose, ears, neck, groin, and knees. Strike with your body’s natural bony weapons such as your elbows and/or knees. If you attacker is close enough to go for his/her face: poke the eyes, force the heel of your palm into the nose, or strike the neck with your key hand.
Never move close to your attacker to strike him/her with your hand. Kick in the groin or the side of the knee. Here in our Security program, we teach basic self-defense moves to prevent attacks and to make you feel safe if there was ever one to occur. We also teach techniques to getting out of certain positions, what you do if you are on the ground and being choked by a person. There are ways to get out of these and different pressure points to concentrate on to get the best leverage.