Right of self-defense

In People v. La Voie, Supreme Court of Colorado, 395 P.2d 1001 (1964), The court wrote, ``When a person has reasonable grounds for believing, and does in fact actually believe, that danger of his being killed, or of receiving great bodily harm, is imminent, he may act on such appearances and defend himself, even to the extent of taking human life when necessary, although it may turn out that the appearances were false, or although he may have been mistaken as to the extent of the real actual danger.''

Question: do i have the right to protect myself
Answer: yes