learn Aikido and--or similarly non-violent self-protective skills (a dojo may exist in or nearby your locale)
learn "NVC" to help avoid angering anyone and to resolve conflicts
Refrain from involving yourself directly with anyone with severely nefarious intent (never insult such a person).
Refrain from fighting evil with evil; we should protect only as we are surely aware we you would decrease not increase temptation and increase not decrease protection and safety.
If you desire help to lighten your mood and learn something for safety, I recommend watching the movie "The Karate Kid":
The Karate Kid (1984) - IMDb
