Boxing can help with self-defense but you might want to check into self-defense classes in general. They will teach you how to reverse attacks and give you other tips on things that you can do to your enemy besides actually hitting them.

self defense of tiger

Horned lizards spray blood from the corners of their eyes in self defense. Camels sometimes spit, not always in self defense, but sometimes it is in self defense. Chinchillas spray in self defense. Some snakes spit in self defense, and so do cats. Skunks spray a liquid from their anal sacs in self defense.

You can get tips on self improvement by reading self improvement magazines like "Self" and looking online for self improving websites that can give you helpful tips. You can also seek out self-help classes and/or programs in you community.

See section 197 California penal code for self defense, which includes use of deadly force in self defense.