Salutations,
You might want to look into the Internal arts such as Tai chi, these aid in centering ones self, though any form could take a life time to truly master. I would also suggest talking to you local or state police, as they may have contact information for you for the kind of courses you are talking about, these courses generally are of short term, and are more about being prepared and aware of your surroundings. Also, I would suggest you have Pepper foam cylinder and a Loud whistle on your key chain. You might also look into a device called a Kubaton. Cheers
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