I think your attitude and confidence in yourself are the best weapon you have in a close-quarters situation. I think you have to make a decision about what you'll do before anything happens - I decided that I will fight to the ground, and will use *anything* within reach to do as much damage as possible.
I've decided that I won't worry about 'hurting somebody'; they forfeit that the moment they become aggressive; I won't worry about getting hurt myself (hurt is better than dead); I won't worry about ending up in court (better in court than dead); and I'll face down a gun and fight rather than being put in a vehicle.
When you know these things about yourself I believe that potential aggressors sense this, at least subconciously, and are less likely to even try anything on you in the first place - bullies like easier pickings.
I think you need to sort this out regardless of what self-defense skills you have. They're useless if you are reluctant to use them fully.
I've decided that I won't worry about 'hurting somebody'; they forfeit that the moment they become aggressive; I won't worry about getting hurt myself (hurt is better than dead); I won't worry about ending up in court (better in court than dead); and I'll face down a gun and fight rather than being put in a vehicle.
When you know these things about yourself I believe that potential aggressors sense this, at least subconciously, and are less likely to even try anything on you in the first place - bullies like easier pickings.
I think you need to sort this out regardless of what self-defense skills you have. They're useless if you are reluctant to use them fully.

